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Minerals 772 words

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  1. Abenaki
    a member of the Algonquian people of Maine and southern Quebec
  2. absorbing
    capable of arousing and holding the attention
  3. acetamide
    a colorless solid amide of acetic acid used as a solvent and in the synthesis of organic compounds
  4. acetate
    a fabric made from fibers of cellulose acetate
  5. acetic
    relating to or containing acetic acid
  6. acetic acid
    a colorless pungent liquid widely used in manufacturing plastics and pharmaceuticals
  7. acicular
    narrow and long and pointed; as pine leaves
  8. acid
    any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
  9. actinolite
    a green mineral of the amphibole group; calcium magnesium iron silicate
  10. activated
    rendered active; e.g. rendered radioactive or luminescent or photosensitive or conductive
  11. acumen
    shrewdness shown by keen insight
  12. aggregate
    a sum total of many heterogenous things taken together
  13. agricultural
    relating to or used in or promoting agriculture or farming
  14. albite
    a widely distributed feldspar that forms rocks
  15. Algonquian
    a member of any of the North American Indian groups speaking an Algonquian language and originally living in the subarctic regions of eastern Canada; many Algonquian tribes migrated south into the woodlands from the Mississippi River to the Atlantic coast
  16. alkaline
    relating to or containing an alkali; having a pH greater than 7
  17. alley
    a narrow street with walls on both sides
  18. allied
    joined by treaty or agreement
  19. alloy
    a mixture containing two or more metallic elements or metallic and nonmetallic elements usually fused together or dissolving into each other when molten
  20. almandine
    a deep red garnet consisting of iron aluminum silicate
  21. almandite
    a deep red garnet consisting of iron aluminum silicate
  22. alpha
    the 1st letter of the Greek alphabet
  23. also
    in addition
  24. also known as
    as known or named at another time or place
  25. alteration
    the act of revising or altering (involving reconsideration and modification)
  26. alum
    a double sulphate of aluminum and potassium that is used as an astringent (among other things)
  27. aluminium
    a silvery ductile metallic element found primarily in bauxite
  28. aluminous
    pertaining to or containing aluminum or alum
  29. aluminum
    a silvery ductile metallic element found primarily in bauxite
  30. aluminum oxide
    any of various forms of aluminum oxide occurring naturally as corundum
  31. amalgam
    a combination or blend of diverse things
  32. amber
    a hard yellowish to brownish translucent fossil resin; used for jewelry
  33. amblygonite
    a white or grey mineral consisting of lithium aluminum phosphate; a source of lithium
  34. amethyst
    a transparent purple variety of quartz; used as a gemstone
  35. amide
    any organic compound containing the group -CONH2
  36. ammonium
    the ion NH4 derived from ammonia; behaves in many respects like an alkali metal ion
  37. amorphous
    having no definite form or distinct shape
  38. amount
    how much there is or how many there are of something that you can quantify
  39. amphibole
    a mineral or mineral variety belonging to the amphibole group
  40. amphibole group
    a group of minerals with similar crystal structures containing a silicate chain and combinations of chiefly sodium and calcium and magnesium and iron and aluminum
  41. amygdaloid
    shaped like an almond
  42. andesite
    a dark grey volcanic rock
  43. andradite
    a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black; used as gemstone
  44. anhydrous
    without water; especially without water of crystallization
  45. anorthite
    rare plagioclastic feldspar occurring in many igneous rocks
  46. anthophyllite
    a dark brown mineral of the amphibole group; magnesium iron silicate
  47. antimonial
    containing antimony
  48. antimonial lead
    a lead alloy that contains about 5% antimony
  49. antimony
    a metallic element having four allotropic forms; used in a wide variety of alloys; found in stibnite
  50. apatite
    a common complex mineral consisting of calcium fluoride phosphate or calcium chloride phosphate; a source of phosphorus
  51. Apollo
    (Greek mythology) Greek god of light; god of prophecy and poetry and music and healing; son of Zeus and Leto; twin brother of Artemis
  52. apple
    native Eurasian tree widely cultivated in many varieties for its firm rounded edible fruits
  53. approximate
    not quite exact or correct
  54. aragonite
    a mineral form of crystalline calcium carbonate; dimorphic with calcite
  55. arborescent
    resembling a tree in form and branching structure
  56. area
    the extent of a 2-dimensional surface enclosed within a boundary
  57. Argentina
    a republic in southern South America; second largest country in South America
  58. argentite
    a valuable silver ore consisting of silver sulfide (Ag2S)
  59. argyrodite
    a rare steel-grey mineral consisting of silver and germanium and sulfur
  60. Arizona
    a state in southwestern United States; site of the Grand Canyon
  61. arsenate
    a salt or ester of arsenic acid
  62. arsenic
    a very poisonous metallic element that has three allotropic forms; arsenic and arsenic compounds are used as herbicides and insecticides and various alloys; found in arsenopyrite and orpiment and realgar
  63. arsenic trioxide
    a white powdered poisonous trioxide of arsenic; used in manufacturing glass and as a pesticide (rat poison) and weed killer
  64. arsenical
    relating to or containing arsenic
  65. arsenide
    a compound of arsenic with a more positive element
  66. arsenopyrite
    a silver-white or grey ore of arsenic
  67. artificially
    not according to nature; not by natural means
  68. asbestos
    a fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer
  69. augite
    dark-green to black glassy mineral of the pyroxene group containing large amounts of aluminum and iron and magnesium
  70. azure
    of a deep somewhat purplish blue color similar to that of a clear October sky
  71. azurite
    blue carbonate of copper; blue malachite
  72. baddeleyite
    a mineral consisting of zirconium oxide
  73. Baja California
    a mountainous peninsula on northwest Mexico
  74. barite
    a white or colorless mineral (BaSO4); the main source of barium
  75. barium
    a soft silvery metallic element of the alkali earth group; found in barite
  76. barium oxide
    an oxide of barium; a whitish toxic powder
  77. barium sulfate
    a white insoluble radiopaque powder used as a pigment
  78. basal
    serving as or forming a base
  79. basalt
    the commonest type of solidified lava; a dense dark grey fine-grained igneous rock that is composed chiefly of plagioclase feldspar and pyroxene
  80. basaltic
    of or relating to or containing basalt
  81. basic
    reduced to the simplest and most significant form possible without loss of generality
  82. basic iron
    pig iron containing a high percentage of phosphorus; used in making steel by a process that removes the phosphorus
  83. bastnaesite
    a yellow-to-brown mineral that is a source of rare earth elements
  84. bauxite
    a clay-like mineral; the chief ore of aluminum; composed of aluminum oxides and aluminum hydroxides; used as an abrasive and catalyst
  85. bearing
    characteristic way of bearing one's body
  86. bearing metal
    an alloy (often of lead or tin base) used for bearings
  87. belong
    be owned by; be in the possession of
  88. belong to
    be a part or adjunct
  89. belonging
    happiness felt in a secure relationship
  90. bentonite
    an absorbent aluminum silicate clay formed from volcanic ash
  91. beryl
    the chief source of beryllium; colored transparent varieties are valued as gems
  92. beryllium
    a light strong brittle grey toxic bivalent metallic element
  93. best-known
    most familiar or renowned
  94. beta
    the 2nd letter of the Greek alphabet
  95. biotite
    dark brown to black mica found in igneous and metamorphic rock
  96. bismuth
    a heavy brittle diamagnetic trivalent metallic element (resembles arsenic and antimony chemically); usually recovered as a by-product from ores of other metals
  97. bituminous
    resembling or containing bitumen
  98. bivalent
    having a valence of two or having two valences
  99. black
    being of the achromatic color of maximum darkness; having little or no hue owing to absorption of almost all incident light
  100. blood-red
    of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies
  101. blue
    of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky
  102. blue green
    a blue-green color or pigment
  103. blue-green
    of a bluish shade of green
  104. bluish
    of the color intermediate between green and violet; having a color similar to that of a clear unclouded sky
  105. bluish green
    of a bluish shade of green
  106. Bolivia
    a landlocked republic in central South America; Simon Bolivar founded Bolivia in 1825 after winning independence from Spain
  107. borate
    a salt or ester of boric acid
  108. borax
    an ore of boron consisting of hydrated sodium borate; used as a flux or cleansing agent
  109. boric
    of or relating to or derived from or containing boron
  110. boric acid
    any of various acids containing boron and oxygen
  111. bornite
    a mineral consisting of sulfides of copper and iron that is found in copper deposits
  112. boron
    a trivalent metalloid element; occurs both in a hard black crystal and in the form of a yellow or brown powder
  113. borosilicate
    a salt of boric and silicic acids
  114. botryoid
    resembling a cluster of grapes in form
  115. botryoidal
    resembling a cluster of grapes in form
  116. bright
    emitting or reflecting light readily or in large amounts
  117. Brighton
    a city in East Sussex in southern England that is a popular resort; site of the University of Sussex
  118. brittle
    having little elasticity; hence easily cracked or fractured or snapped
  119. bromide
    a trite or obvious remark
  120. brown
    of a color similar to that of wood or earth
  121. brownish
    of a color similar to that of wood or earth
  122. brownish yellow
    a yellow color of low lightness with a brownish tinge
  123. by-product
    a secondary and sometimes unexpected consequence
  124. cadmium
    a soft bluish-white ductile malleable toxic bivalent metallic element; occurs in association with zinc ores
  125. calcic
    derived from or containing calcium or lime
  126. calcite
    a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone
  127. calcium
    a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
  128. calcium carbonate
    a salt found in nature as chalk or calcite or aragonite or limestone
  129. calcium phosphate
    a phosphate of calcium; a main constituent of animal bones
  130. calcium sulfate
    a white salt (CaSO4)
  131. California
    a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes
  132. call
    utter a sudden loud cry
  133. calomel
    a tasteless colorless powder used medicinally as a cathartic
  134. canary
    any of several small Old World finches
  135. canary-yellow
    having the color of a canary; of a light to moderate yellow
  136. capillary
    any of the minute blood vessels connecting arterioles with venules
  137. carbon
    an abundant nonmetallic tetravalent element occurring in three allotropic forms: amorphous carbon and graphite and diamond; occurs in all organic compounds
  138. carbonate
    treat with carbon dioxide
  139. carnallite
    a white or reddish mineral consisting of hydrous chlorides of potassium and magnesium; used as a fertilizer and as a source of potassium and magnesium
  140. carnotite
    a yellow radioactive mineral; an ore of uranium and radium and vanadium
  141. cassiterite
    a hard heavy dark mineral that is the chief source of tin
  142. cation
    a positively charged ion
  143. cavity
    space that is surrounded by something
  144. cementitious
    like or relevant to or having the properties of cement
  145. ceramic
    an artifact made of hard brittle material produced from nonmetallic minerals by firing at high temperatures
  146. ceramics
    the art of making and decorating pottery
  147. cerium
    a ductile grey metallic element of the lanthanide series; used in lighter flints; the most abundant of the rare-earth group
  148. cerussite
    a mineral consisting of lead carbonate that is an important source of lead
  149. cesium
    a soft silver-white ductile metallic element (liquid at normal temperatures); the most electropositive and alkaline metal
  150. chabazite
    a group of minerals of the zeolite family consisting of a hydrous silicate of calcium and aluminum
  151. chalcanthite
    hydrated blue crystalline form of copper sulfate
  152. chalcedony
    a milky or greyish translucent to transparent quartz
  153. chalcocite
    a heavy grey mineral that is an ore of copper
  154. chalcopyrite
    a yellow copper ore (CuFeS2) made up of copper and iron sulfide
  155. chalky
    composed of or containing or resembling calcium carbonate or calcite or chalk
  156. chamosite
    a greenish grey or black silicate of iron and aluminum
  157. characteristically
    in characteristic manner
  158. chemical
    of or made from or using substances produced by or used in reactions involving atomic or molecular changes
  159. chemical formula
    a representation of a substance using symbols for its constituent elements
  160. chemically
    with respect to chemistry
  161. chemistry
    the science of matter; the branch of the natural sciences dealing with the composition of substances and their properties and reactions
  162. chiefly
    for the most part
  163. Chile
    a republic in southern South America on the western slopes of the Andes on the south Pacific coast
  164. chloride
    any compound containing a chlorine atom
  165. chlorine
    a common nonmetallic element belonging to the halogens; best known as a heavy yellow irritating toxic gas; used to purify water and as a bleaching agent and disinfectant; occurs naturally only as a salt (as in sea water)
  166. chlorite
    a generally green or black mineral; it occurs as a constituent of many rocks typically in the form of a flat crystal
  167. chromate
    any salt or ester of chromic acid
  168. chromite
    a brownish-black mineral; the major source of chromium
  169. chromium
    a hard brittle multivalent metallic element; resistant to corrosion and tarnishing
  170. chrysoberyl
    a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone
  171. cinnabar
    a heavy reddish mineral consisting of mercuric sulfide; the chief source of mercury
  172. clay
    water soaked soil; soft wet earth
  173. clayey
    resembling or containing clay
  174. cleansing
    the act of making something clean
  175. cleansing agent
    a preparation used in cleaning something
  176. cleavable
    capable of being cleaved
  177. cleavage
    the act of cleaving or splitting
  178. cleave
    separate or cut with a tool, such as a sharp instrument
  179. clove
    moderate sized very symmetrical red-flowered evergreen widely cultivated in the tropics for its flower buds which are source of cloves
  180. coating
    a thin layer covering something
  181. cobalt
    a hard ferromagnetic silver-white bivalent or trivalent metallic element; a trace element in plant and animal nutrition
  182. cobaltite
    a rare silvery-white mineral; important ore of cobalt
  183. color
    a visual attribute of things that results from the light they emit or transmit or reflect
  184. colored
    having color or a certain color; sometimes used in combination
  185. colorless
    weak in color; not colorful
  186. colourless
    weak in color; not colorful
  187. columbium
    a former name for niobium
  188. columnar
    having the form of a column
  189. combination
    the act of combining things to form a new whole
  190. combined
    made or joined or united into one
  191. commissariat
    a stock or supply of foods
  192. commonly
    under normal conditions
  193. compact
    closely and firmly united or packed together
  194. compare
    examine and note the similarities or differences of
  195. complex
    complicated in structure; consisting of interconnected parts
  196. composed
    serenely self-possessed and free from agitation especially in times of stress
  197. composition
    the way in which someone or something is composed
  198. compound
    a whole formed by a union of two or more elements or parts
  199. comprise
    be composed of
  200. concretion
    the union of diverse things into one body or form or group; the growing together of parts
  201. conductivity
    the transmission of heat or electricity or sound
  202. Congo
    a major African river (one of the world's longest); flows through Congo into the South Atlantic
  203. consist
    have its essential character; be comprised or contained in; be embodied in
  204. constituent
    an artifact that is one of the individual parts of which a composite entity is made up; especially a part that can be separated from or attached to a system
  205. contain
    contain or hold; have within
  206. copper
    a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
  207. copper sulfate
    a copper salt made by the action of sulfuric acid on copper oxide
  208. cordierite
    a blue mineral of magnesium and iron and aluminum and silicon and oxygen; often used as a gemstone
  209. corundum
    very hard mineral used as an abrasive
  210. county
    (United States) the largest administrative district within a state
  211. cove
    a small inlet
  212. crackling
    the sharp sound of snapping noises
  213. cristobalite
    a white mineral consisting of silica; found in volcanic rocks
  214. crust
    a hard outer layer that covers something
  215. cryolite
    a white mineral consisting of fluorides of aluminum and sodium; a source of fluorine
  216. crystal
    a solid formed by the solidification of a chemical and having a highly regular atomic structure
  217. crystalline
    consisting of or containing or of the nature of crystals
  218. crystallization
    the formation of crystals
  219. crystallize
    cause to form crystals or assume crystalline form
  220. crystallized
    having both internal structure and external form of a crystal
  221. crystallizing
    the formation of crystals
  222. cubic
    having three dimensions
  223. Cumberland
    English general; son of George II; fought unsuccessfully in the battle of Fontenoy (1721-1765)
  224. cuprite
    a mineral consisting of cuprous oxide that is a source of copper
  225. dark
    devoid of or deficient in light or brightness; shadowed or black
  226. dark red
    a red color that reflects little light
  227. Dawson
    a town in northwestern Canada in the Yukon on the Yukon River; a boom town around 1900 when gold was discovered in the Klondike
  228. deep
    having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination
  229. deep red
    a deep and vivid red color
  230. density
    the amount per unit size
  231. deposit
    the act of putting something somewhere
  232. derived
    formed or developed from something else; not original
  233. diamagnetic
    relating to or exhibiting diamagnetism; slightly repelled by a magnet
  234. differ
    be different
  235. differently
    in another and different manner
  236. diorite
    a granular crystalline intrusive rock
  237. dioxide
    an oxide containing two atoms of oxygen in the molecule
  238. discovered
    discovered or determined by scientific observation
  239. dispersed
    distributed or spread over a considerable extent
  240. district
    a region marked off for administrative or other purposes
  241. dolomite
    a kind of sedimentary rock resembling marble or limestone but rich in magnesium carbonate
  242. doubly
    to double the degree
  243. drilling
    the act of drilling
  244. drilling mud
    a mixture of clays and chemicals and water; pumped down the drill pipe to lubricate and cool the drilling bit and to flush out the cuttings and to strengthen the sides of the hole
  245. ductile
    capable of being shaped or bent or drawn out
  246. dull
    so lacking in interest as to cause mental weariness
  247. earth
    the 3rd planet from the sun; the planet we live on
  248. earthy
    of or consisting of or resembling earth
  249. edged
    having a specified kind of border or edge
  250. eject
    put out or expel from a place
  251. electrolysis
    (chemistry) a chemical decomposition reaction produced by passing an electric current through a solution containing ions
  252. electron
    an elementary particle with negative charge
  253. electron tube
    electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
  254. element
    any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
  255. elements
    violent or severe weather (viewed as caused by the action of the four elements)
  256. emerald
    a green transparent form of beryl; highly valued as a gemstone
  257. emit
    give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
  258. erbium
    a trivalent metallic element of the rare earth group; occurs with yttrium
  259. erythrite
    a reddish mineral consisting of hydrated cobalt arsenate in monoclinic crystalline form and used in coloring glass; usually found in veins bearing cobalt and arsenic
  260. especially
    to a distinctly greater extent or degree than is common
  261. essential
    basic and fundamental
  262. essentially
    in essence; at bottom or by one's (or its) very nature
  263. eutectic
    a mixture of substances having a minimum melting point
  264. exchangeable
    suitable to be exchanged
  265. exhibit
    to show, make visible or apparent
  266. expansion
    the act of increasing (something) in size or volume or quantity or scope
  267. explosive
    a chemical substance that undergoes a rapid chemical change (with the production of gas) on being heated or struck
  268. feldspar
    any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium
  269. fergusonite
    a dark mineral consisting of oxides of yttrium and erbium and tantalum and other minerals
  270. ferric
    of or relating to or containing iron
  271. ferrous
    of or relating to or containing iron
  272. fiber
    a slender and greatly elongated substance capable of being spun into yarn
  273. fibrous
    having or resembling fibers especially fibers used in making cordage such as those of jute
  274. filler
    anything added to fill out a whole
  275. find
    discover or determine the existence, presence, or fact of
  276. fine-grained
    consisting of fine particles
  277. fluorapatite
    a form of apatite in which fluorine predominates over chlorine
  278. fluoresce
    exhibit or undergo fluorescence
  279. fluoride
    a salt of hydrofluoric acid
  280. fluorine
    a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
  281. fluorite
    a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine
  282. fluosilicate
    salt of fluosilicic acid
  283. flux
    a flow or discharge
  284. foliated
    ornamented with foliage or foils
  285. folium
    a thin layer or stratum of (especially metamorphic) rock
  286. form
    a perceptual structure
  287. formerly
    at a previous time
  288. formula
    a group of symbols that make a mathematical statement
  289. fossil
    the remains (or an impression) of a plant or animal that existed in a past geological age and that has been excavated from the soil
  290. found
    food and lodging provided in addition to money
  291. fracture
    breaking of hard tissue such as bone
  292. free state
    any state prohibiting slavery prior to the American Civil War
  293. freshly
    very recently
  294. Fresno
    a city in south central California in the San Joaquin Valley; center of an important agricultural area and gateway to the Sierra Nevada Mountains
  295. fuse
    any igniter that is used to initiate the burning of a propellant
  296. fused
    joined together into a whole
  297. fusible
    capable of being melted and fused
  298. gadolinite
    a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
  299. galena
    soft blue-grey mineral; lead sulfide; a major source of lead
  300. garnet
    any of a group of hard glassy minerals (silicates of various metals) used as gemstones and as an abrasive
  301. gem
    a crystalline rock that can be cut and polished for jewelry
  302. geological
    of or relating to or based on geology
  303. geologist
    a specialist in geology
  304. geology
    a science that deals with the history of the earth as recorded in rocks
  305. germanite
    a rare reddish-grey mineral consisting of a copper iron germanium sulfide
  306. germanium
    a brittle grey crystalline element that is a semiconducting metalloid (resembling silicon) used in transistors; occurs in germanite and argyrodite
  307. gibbsite
    white crystalline mineral consisting of aluminum hydroxide; a constituent of bauxite and a source of alumina
  308. glassy
    (used of eyes) lacking liveliness
  309. glauconite
    a green mineral consisting of hydrated silicate of potassium or iron or magnesium or aluminum; found in greensand
  310. globule
    a small globe or ball
  311. goethite
    a red or yellow or brown mineral; an oxide of iron that is a common constituent of rust
  312. goldfield
    a district where gold is mined
  313. grain
    a cereal grass
  314. granite
    plutonic igneous rock having visibly crystalline texture; generally composed of feldspar and mica and quartz
  315. granular
    composed of or covered with particles resembling meal in texture or consistency
  316. graphite
    used as a lubricant and as a moderator in nuclear reactors
  317. gravity
    (physics) the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface
  318. gray
    of an achromatic color of any lightness intermediate between the extremes of white and black
  319. gray-white
    of white tinged with grey
  320. grayish
    of an achromatic color of any lightness intermediate between the extremes of white and black
  321. green
    of the color between blue and yellow in the color spectrum; similar to the color of fresh grass
  322. greenish
    of the color between blue and yellow in the color spectrum; similar to the color of fresh grass
  323. greenockite
    ore of cadmium; a rare yellowish mineral consisting of cadmium sulphide in crystalline form
  324. group
    any number of entities (members) considered as a unit
  325. guanine
    a purine base found in DNA and RNA; pairs with cytosine
  326. guano
    the excrement of sea birds; used as fertilizer
  327. gypsum
    a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
  328. H2O
    binary compound that occurs at room temperature as a clear colorless odorless tasteless liquid; freezes into ice below 0 degrees centigrade and boils above 100 degrees centigrade; widely used as a solvent
  329. halite
    naturally occurring crystalline sodium chloride
  330. Halle
    a city in the Saxony region of Germany on the Saale River; a member of the Hanseatic League during the 13th and 14th centuries
  331. hardness
    the quality of being difficult to do
  332. hausmannite
    a mineral consisting of manganese tetroxide; a source of manganese
  333. heavy spar
    a white or colorless mineral (BaSO4); the main source of barium
  334. hematite
    the principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form
  335. hemimorphite
    a white mineral; a common ore of zinc
  336. heulandite
    a group of minerals of the zeolite family consisting of a hydrous aluminum silicate of sodium and calcium
  337. hexagonal
    having six sides or divided into hexagons
  338. high temperature
    the presence of heat
  339. homogeneous
    all of the same or similar kind or nature
  340. horizontally
    in a horizontal direction
  341. hornblende
    a green to black mineral of the amphibole group; consists of silicates of calcium and sodium and magnesium and iron
  342. hydrate
    any compound that contains water of crystallization
  343. hydrated
    containing combined water (especially water of crystallization as in a hydrate)
  344. hydrocarbon
    an organic compound containing only carbon and hydrogen
  345. hydrogen
    a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe
  346. hydrous
    containing combined water (especially water of crystallization as in a hydrate)
  347. hydroxide
    a compound of an oxide with water
  348. hydroxyl
    the monovalent group -OH in such compounds as bases and some acids and alcohols
  349. ideally
    in an ideal manner
  350. identical
    being the exact same one; not any other:
  351. igneous
    produced by the action of fire or intense heat
  352. igneous rock
    rock formed by the solidification of molten magma
  353. ilmenite
    a weakly magnetic black mineral found in metamorphic and plutonic rocks; an iron titanium oxide in crystalline form; a source of titanium
  354. impure
    combined with extraneous elements
  355. incrustation
    the formation of a crust
  356. indistinct
    not clearly defined or easy to perceive or understand
  357. indite
    produce a literary work
  358. indium
    a rare soft silvery metallic element; occurs in small quantities in sphalerite
  359. insecticide
    a chemical used to kill insects
  360. interaction
    a mutual or reciprocal action; interacting
  361. interlaced
    having a pattern of fretwork or latticework
  362. intermediate
    lying between two extremes in time or space or state
  363. interstratify
    arrange rocks in alternating strata
  364. ion
    a particle that is electrically charged (positive or negative); an atom or molecule or group that has lost or gained one or more electrons
  365. iridium
    a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium
  366. iron
    a heavy ductile magnetic metallic element; is silver-white in pure form but readily rusts; used in construction and tools and armament; plays a role in the transport of oxygen by the blood
  367. iron ore
    an ore from which iron can be extracted
  368. isometric
    related by an isometry
  369. isomorphous
    having similar appearance but genetically different
  370. jadeite
    a hard green mineral consisting of sodium aluminum silicate in monoclinic crystalline form; a source of jade; found principally in Burma
  371. jet black
    a very dark black
  372. kaolin
    a fine usually white clay formed by the weathering of aluminous minerals (as feldspar); used in ceramics and as an absorbent and as a filler (e.g., in paper)
  373. kaolinite
    a mineral consisting of aluminum silicate; main source of kaolin
  374. Kazakhstan
    a landlocked republic to the south of Russia and to the northeast of the Caspian Sea; the original Turkic-speaking inhabitants were overrun by Mongols in the 13th century; an Asian soviet from 1936 to 1991
  375. kernite
    a light soft mineral consisting of hydrated sodium borate in crystalline form; an important source of boron
  376. kidney
    either of two bean-shaped excretory organs that filter wastes (especially urea) from the blood and excrete them and water in urine
  377. kidney-shaped
    (of a leaf or bean shape) resembling the shape of kidney
  378. kieserite
    a white mineral consisting of hydrous magnesium sulfate often found in salt mines
  379. known
    apprehended with certainty
  380. kyanite
    a grey or greenish-blue mineral consisting of aluminum silicate in crystalline form; occurs in metaphoric rock, used as a refractory
  381. langbeinite
    a mineral consisting of potassium magnesium double sulphate; used as a fertilizer
  382. lanthanum
    a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
  383. lead
    take somebody somewhere
  384. lead arsenate
    a poisonous white solid (Pb3[AsO4]2) used as an insecticide
  385. lead chromate
    a poisonous chromate of lead used as a pigment in paint
  386. lemon
    a small evergreen tree that originated in Asia but is widely cultivated for its fruit
  387. lepidocrocite
    a red to reddish brown mineral consisting of iron oxide hydroxide; often found in iron ores together with goethite
  388. lepidolite
    a mineral of the mica group; an important source of lithium
  389. light
    (physics) electromagnetic radiation that can produce a visual sensation
  390. light brown
    a brown that is light but unsaturated
  391. light-blue
    of a light shade of blue
  392. light-colored
    (used of color) having a relatively small amount of coloring agent
  393. light-green
    of the color between blue and yellow in the color spectrum; similar to the color of fresh grass
  394. lignite
    intermediate between peat and bituminous coal
  395. lime
    the green acidic fruit of any of various lime trees
  396. lithium
    a soft silver-white univalent element of the alkali metal group; the lightest metal known; occurs in several minerals
  397. locality
    a surrounding or nearby region
  398. location
    the act of putting something in a certain place
  399. lunar
    of or relating to or associated with the moon
  400. luster
    the visual property of something that shines with reflected light
  401. lustre
    the visual property of something that shines with reflected light
  402. Madagascar
    a republic on the island of Madagascar; achieved independence from France in 1960
  403. magnesite
    a white mineral consisting of magnesium carbonate; a source of magnesium
  404. magnesium
    a light silver-white ductile bivalent metallic element; in pure form it burns with brilliant white flame; occurs naturally only in combination (as in magnesite and dolomite and carnallite and spinel and olivine)
  405. magnesium hydroxide
    a white crystalline powder used chiefly in medicines
  406. magnesium sulfate
    a salt of magnesium
  407. magnetite
    an oxide of iron that is strongly attracted by magnets
  408. malachite
    a green or blue mineral used as an ore of copper and for making ornamental objects
  409. malleable
    capable of being shaped or bent or drawn out
  410. manganese
    a hard brittle grey polyvalent metallic element that resembles iron but is not magnetic; used in making steel; occurs in many minerals
  411. manganite
    a black mineral consisting of basic manganese oxide; a source of manganese
  412. marble
    a hard crystalline metamorphic rock that takes a high polish; used for sculpture and as building material
  413. Maricopa
    a member of a North American Indian people of the Gila river valley in Arizona
  414. mariposa
    any of several plants of the genus Calochortus having tulip-shaped flowers with 3 sepals and 3 petals; southwestern United States and Mexico
  415. masonry
    the craft of a mason
  416. mass
    the property of a body that causes it to have weight in a gravitational field
  417. masse
    a shot in billiards made by hitting the cue ball with the cue held nearly vertically; the cue ball spins around another ball before hitting the object ball
  418. masses
    the common people generally
  419. massicot
    the mineral form of lead monoxide; in the form of yellow powder it is used as a pigment
  420. massive
    consisting of great mass; containing a great quantity of matter
  421. matte
    not reflecting light; not glossy
  422. melting
    the process whereby heat changes something from a solid to a liquid
  423. melting point
    the temperature below which a liquid turns into a solid
  424. mercury
    a heavy silvery toxic univalent and bivalent metallic element; the only metal that is liquid at ordinary temperatures
  425. Messina
    a port city in northeastern Sicily on the Strait of Messina
  426. metal
    any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
  427. metallic
    containing or made of or resembling or characteristic of a metal
  428. metallic element
    any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
  429. metallic-looking
    resembling metal
  430. metalloid
    of or being a nonmetallic element that has some of the properties of metal
  431. metastable
    (of physical systems) continuing in its present state of equilibrium unless sufficiently disturbed to pass to a more stable state of equilibrium
  432. meteorite
    stony or metallic object that is the remains of a meteoroid that has reached the earth's surface
  433. meteoritic
    of or relating to or caused by meteorites
  434. Mexico
    a republic in southern North America; became independent from Spain in 1810
  435. mica
    any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves; used as dielectrics because of their resistance to electricity
  436. microscopic
    so small as to be invisible without a microscope
  437. midway
    at half the distance; at the middle
  438. millerite
    a yellow mineral consisting of nickel sulfide; a minor source of nickel
  439. mine
    excavation in the earth from which ores and minerals are extracted
  440. mineral
    solid homogeneous inorganic substances occurring in nature having a definite chemical composition
  441. mineral wax
    a waxy mineral that is a mixture of hydrocarbons and occurs in association with petroleum; some varieties are used in making ceresin and candles
  442. mineralogist
    a scientist trained in mineralogy
  443. mineralogy
    the branch of geology that studies minerals: their structure and properties and the ways of distinguishing them
  444. minium
    a reddish oxide of lead (Pb3O4) used as a pigment in paints and in glass and ceramics
  445. minor
    inferior in number or size or amount
  446. mispickel
    a silver-white or grey ore of arsenic
  447. mixture
    a collection containing a variety of sorts of things
  448. Mohs scale
    a scale of hardness of solids; talc is 0 and diamond is 10; ordering is determined by which substance can scratch another substance
  449. moisture
    wetness caused by water
  450. molybdenite
    a mineral resembling graphite that is valued as the chief source of molybdenum and its compounds
  451. monazite
    a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium
  452. monoclinic
    having three unequal crystal axes with one oblique intersection
  453. monoxide
    an oxide containing just one atom of oxygen in the molecule
  454. Moon
    the natural satellite of the Earth
  455. mortar
    a bowl-shaped vessel in which substances can be ground and mixed with a pestle
  456. mossy
    overgrown with moss
  457. muscovite
    a colorless or pale brown mica with potassium
  458. name
    a language unit by which a person or thing is known
  459. native
    belonging to one by birth
  460. natrolite
    a group of minerals of the zeolite family consisting of a hydrous silicate of sodium and aluminum
  461. needle
    a sharp pointed implement (usually steel)
  462. needle-shaped
    narrow and long and pointed; as pine leaves
  463. needlelike
    ending in a sharp point
  464. neodymium
    a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
  465. nepheline
    a whitish mineral consisting of sodium aluminum silicate or potassium aluminum silicate in crystalline form; used in the manufacture of ceramics and enamels
  466. nephrite
    an amphibole mineral consisting of calcium magnesium silicate in monoclinic crystalline form; a source of jade that is less valuable than from jadeite; once believed to cure kidney disorders
  467. New Zealand
    an independent country within the British Commonwealth; achieved independence from the United Kingdom in 1907; known for sheep and spectacular scenery
  468. nickel
    a hard malleable ductile silvery metallic element that is resistant to corrosion; used in alloys; occurs in pentlandite and smaltite and garnierite and millerite
  469. niobium
    a soft grey ductile metallic element used in alloys; occurs in niobite; formerly called columbium
  470. nitrate
    any compound containing the nitrate group (such as a salt or ester of nitric acid)
  471. nitre
    (KNO3) used especially as a fertilizer and explosive
  472. nitrocalcite
    the mineral form of calcium nitrate
  473. nitrogen
    a common nonmetallic element that is normally a colorless odorless tasteless inert diatomic gas; constitutes 78 percent of the atmosphere by volume; a constituent of all living tissues
  474. Northumberland
    the northernmost county of England; has many Roman remains (including Hadrian's Wall)
  475. nova
    a star that ejects some of its material in the form of a cloud and become more luminous in the process
  476. Nova Scotia
    the Canadian province in the Maritimes consisting of the Nova Scotia peninsula and Cape Breton Island; French settlers who called the area Acadia were exiled to Louisiana by the British in the 1750s and their descendants are know as Cajuns
  477. oblique
    slanting or inclined in direction or course or position--neither parallel nor perpendicular nor right-angled
  478. obsolete
    no longer in use
  479. occur
    come to pass
  480. octahedron
    any polyhedron having eight plane faces
  481. often
    many times at short intervals
  482. olive-green
    a color that is lighter and greener than olive
  483. olivenite
    rare green to black mineral consisting of hydrated copper arsenate that is found in copper deposits
  484. olivine
    a mineral consisting of magnesium iron silicate; a source of magnesium
  485. opal
    a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
  486. opaque
    not transmitting or reflecting light or radiant energy; impenetrable to sight
  487. ore
    a mineral that contains metal that is valuable enough to be mined
  488. organic
    being or relating to or derived from or having properties characteristic of living organisms
  489. organic compound
    any compound of carbon and another element or a radical
  490. orient
    the hemisphere that includes Eurasia and Africa and Australia
  491. orientated
    adjusted or located in relation to surroundings or circumstances; sometimes used in combination
  492. oriented
    adjusted or located in relation to surroundings or circumstances; sometimes used in combination
  493. orpiment
    a yellow mineral occurring in conjunction with realgar; an ore of arsenic
  494. orthoclase
    a white or colored monoclinic feldspar
  495. osmium
    a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known
  496. other
    not the same one or ones already mentioned or implied
  497. oxidation
    the process of oxidizing; the addition of oxygen to a compound with a loss of electrons; always occurs accompanied by reduction
  498. oxide
    any compound of oxygen with another element or a radical
  499. oxygen
    a nonmetallic bivalent element that is normally a colorless odorless tasteless nonflammable diatomic gas; constitutes 21 percent of the atmosphere by volume; the most abundant element in the earth's crust
  500. ozokerite
    a waxy mineral that is a mixture of hydrocarbons and occurs in association with petroleum; some varieties are used in making ceresin and candles
  501. pale
    a wooden strip forming part of a fence
  502. pale blue
    of a light shade of blue
  503. palladium
    a silver-white metallic element of the platinum group that resembles platinum; occurs in some copper and nickel ores; does not tarnish at ordinary temperatures and is used (alloyed with gold) in jewelry
  504. paragonite
    a colorless or pale brown mica with sodium
  505. pearly
    of a white the color of pearls
  506. pegmatite
    a form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements
  507. pentavalent
    having a valence of five
  508. pentlandite
    a mineral (iron and nickel sulphide) that is the chief ore of nickel
  509. pentoxide
    an oxide containing five atoms of oxygen in the molecule
  510. perfect
    being complete of its kind and without defect or blemish
  511. periclase
    a white solid mineral that occurs naturally as periclase; a source of magnesium
  512. pharmaceutical
    of or relating to pharmacy or pharmacists
  513. phillipsite
    a group of white or reddish crystalline minerals of the zeolite family consisting of a hydrous silicate of calcium and potassium and aluminum
  514. phlogopite
    a brown form of mica consisting of hydrous silicate of potassium and magnesium and aluminum
  515. phosphate
    a salt of phosphoric acid
  516. phosphorus
    a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells; is highly reactive and occurs in several allotropic forms
  517. pigment
    dry coloring material (especially a powder to be mixed with a liquid to produce paint, etc.)
  518. Pima
    a member of the North American Indian people living in southern Arizona and northern Mexico
  519. pink
    of a light shade of red
  520. pinkish
    of a light shade of red
  521. pitchblende
    a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore
  522. plagioclase
    any of a series of triclinic feldspars that form rocks
  523. plaster
    a mixture of lime or gypsum with sand and water; hardens into a smooth solid; used to cover walls and ceilings
  524. plaster of Paris
    any of several gypsum cements; a white powder (a form of calcium sulphate) that forms a paste when mixed with water and hardens into a solid; used in making molds and sculptures and casts for broken limbs
  525. plasticizer
    a substance added to plastics or other materials to make them more pliable
  526. plate
    dish on which food is served or from which food is eaten
  527. platinum
    a heavy precious metallic element; grey-white and resistant to corroding; occurs in some nickel and copper ores and is also found native in some deposits
  528. plumose
    having an ornamental plume or feathery tuft
  529. plutonic
    of igneous rock that has solidified beneath the earth's surface; granite or diorite or gabbro
  530. plutonic rock
    large mass of intrusive igneous rock believed to have solidified deep within the earth
  531. pollucite
    a rare mineral that is an important source of cesium
  532. polymorph
    an organism that can assume more than one adult form as in the castes of ants or termites
  533. porous
    full of pores or vessels or holes
  534. porphyrin
    any of various pigments distributed widely in living tissues
  535. potassium
    a light soft silver-white metallic element of the alkali metal group; oxidizes rapidly in air and reacts violently with water; is abundant in nature in combined forms occurring in sea water and in carnallite and kainite and sylvite
  536. praseodymium
    a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
  537. predominant
    having superior power and influence
  538. preparation
    the activity of putting or setting in order in advance of some act or purpose
  539. preservative
    tending or having the power to preserve
  540. primarily
    for the most part
  541. principally
    for the most part
  542. printing ink
    a semisolid quick drying ink made especially for use in printing
  543. prism
    a polyhedron with two congruent and parallel faces (the bases) and whose lateral faces are parallelograms
  544. prismatic
    of or relating to or resembling or constituting a prism
  545. product
    an artifact that has been created by someone or some process
  546. prof
    someone who is a member of the faculty at a college or university
  547. proportion
    the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree
  548. protective
    intended or adapted to afford protection of some kind
  549. pseudo
    (often used in combination) not genuine but having the appearance of
  550. purple
    a purple color or pigment
  551. pyramid
    a polyhedron having a polygonal base and triangular sides with a common vertex
  552. pyrite
    a common mineral (iron disulfide) that has a pale yellow color
  553. pyrites
    any of various metallic-looking sulfides (of which pyrite is the commonest)
  554. pyroelectric
    relating to or exhibiting pyroelectricity
  555. pyrolusite
    a mineral consisting of manganese dioxide; an important source of manganese
  556. pyromorphite
    a mineral consisting of lead chloride and phosphate; a minor source of lead
  557. pyrope
    a deep red garnet used as a gemstone
  558. pyrophyllite
    a white or greenish aluminum silicate mineral (resembles talc)
  559. pyroxene
    any of a group of crystalline silicate mineral common in igneous and metamorphic rocks
  560. pyrrhotite
    a brownish iron sulfide mineral (FeS) having weak magnetic properties
  561. quarry
    animal hunted or caught for food
  562. quartz
    a hard glossy mineral consisting of silicon dioxide in crystal form; present in most rocks (especially sandstone and granite); yellow sand is quartz with iron oxide impurities
  563. Quebec
    the largest province of Canada; a French colony from 1663 to 1759 when it was lost to the British
  564. radiating
    diverging from a common point
  565. radioactive
    exhibiting or caused by radioactivity
  566. rare
    marked by an uncommon quality; especially superlative or extreme of its kind
  567. rare earth
    any element of the lanthanide series (atomic numbers 57 through 71)
  568. rarely
    not often
  569. rate
    a quantity or amount or measure considered as a proportion of another quantity or amount or measure
  570. rating
    standing or position on a scale
  571. realgar
    a rare soft orange mineral consisting of arsenic sulphide; an important ore of arsenic
  572. rectangular
    having four right angles
  573. red
    red color or pigment; the chromatic color resembling the hue of blood
  574. red lead
    a reddish oxide of lead (Pb3O4) used as a pigment in paints and in glass and ceramics
  575. Red Sea
    a long arm of the Indian Ocean between northeast Africa and Arabia; linked to the Mediterranean at the north end by the Suez Canal
  576. reddish
    of a color at the end of the color spectrum (next to orange); resembling the color of blood or cherries or tomatoes or rubies
  577. reddish brown
    a shade of brown with a tinge of red
  578. refractive
    of or relating to or capable of refraction
  579. refractive index
    the ratio of the velocity of light in a vacuum to that in a medium
  580. related
    being connected either logically or causally or by shared characteristics
  581. related to
    being connected either logically or causally or by shared characteristics
  582. reniform
    (of a leaf or bean shape) resembling the shape of kidney
  583. replacing
    the act of furnishing an equivalent person or thing in the place of another
  584. resinous
    having the characteristics of pitch or tar
  585. retardant
    any agent that retards or delays or hinders
  586. rhodium
    a white hard metallic element that is one of the platinum group and is found in platinum ores; used in alloys with platinum
  587. rhodochrosite
    a mineral consisting of manganese carbonate; a source of manganese
  588. rhodonite
    a pink or red mineral consisting of crystalline manganese silicate; used as an ornamental stone
  589. rhombohedral
    having threefold symmetry
  590. rhombohedron
    a parallelepiped bounded by six similar faces (either rhombuses or parallelograms)
  591. roasting
    cooking (meat) by dry heat in an oven (usually with fat added)
  592. rock
    material consisting of the aggregate of minerals like those making up the Earth's crust
  593. Romania
    a republic in southeastern Europe with a short coastline on the Black Sea
  594. rose-red
    of a deep slightly bluish red color
  595. ruby
    a transparent piece of ruby that has been cut and polished and is valued as a precious gem
  596. ruby spinel
    a spinel used as a gemstone (usually dark red)
  597. ruthenium
    a rare polyvalent metallic element of the platinum group; it is found associated with platinum
  598. rutile
    a mineral consisting of titanium dioxide in crystalline form; occurs in metamorphic and plutonic rocks and is a major source of titanium
  599. samarium
    a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite
  600. samarskite
    a complex black mineral occurring in pegmatites
  601. sapphire
    a precious transparent stone of rich blue corundum valued as a gemstone
  602. sapphirine
    made of or resembling sapphire
  603. Saxony
    an area in Germany around the upper Elbe river; the original home of the Saxons
  604. scale
    an ordered reference standard
  605. scandium
    a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite
  606. scheelite
    a mineral used as an ore of tungsten
  607. schorl
    black tourmaline
  608. secondary
    being of second rank or importance or value; not direct or immediate
  609. segment
    one of several parts or pieces that fit with others to constitute a whole object
  610. selenium
    a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)
  611. semiprecious
    used of gemstones having less commercial value than precious stones
  612. separated
    being or feeling set or kept apart from others
  613. sepiolite
    a white clayey mineral
  614. series
    similar things placed in order or happening one after another
  615. serpentine
    resembling a serpent in form
  616. shades of
    something that reminds you of someone or something
  617. shape
    a perceptual structure
  618. shaped
    having the shape of
  619. siderite
    iron ore in the form of ferrous carbonate
  620. silica
    a white or colorless vitreous insoluble solid (SiO2); various forms occur widely in the earth's crust as quartz or cristobalite or tridymite or lechatelierite
  621. silicate
    a salt or ester derived from silicic acid
  622. silicon
    a tetravalent nonmetallic element; next to oxygen it is the most abundant element in the earth's crust; occurs in clay and feldspar and granite and quartz and sand; used as a semiconductor in transistors
  623. silver
    a soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal; occurs in argentite and in free form; used in coins and jewelry and tableware and photography
  624. silver bromide
    a bromide that darkens when exposed to light; used in making photographic emulsions
  625. silver chloride
    a chloride used chiefly in the manufacture of photographic emulsions
  626. silver-white
    of a white that resembles silver
  627. silvery
    of lustrous grey; covered with or tinged with the color of silver
  628. slake
    satisfy (thirst)
  629. slaked
    allayed
  630. slender
    having little width in proportion to the length or height
  631. slightly
    to a small degree or extent
  632. small
    limited or below average in number or quantity or magnitude or extent
  633. smelt
    extract (metals) by heating
  634. soda
    a sweet drink containing carbonated water and flavoring
  635. sodalite
    a vitreous mineral consisting of sodium aluminum silicate and sodium chloride in crystalline form; occurs in igneous rocks
  636. sodium
    a silvery soft waxy metallic element of the alkali metal group; occurs abundantly in natural compounds (especially in salt water); burns with a yellow flame and reacts violently in water; occurs in sea water and in the mineral halite (rock salt)
  637. sodium sulfate
    a solid white bitter salt used in manufacturing glass and paper and dyes and pharmaceuticals
  638. soft
    yielding readily to pressure or weight
  639. softener
    a substance added to another to make it less hard
  640. solid
    not soft or yielding to pressure
  641. solid solution
    a homogeneous solid that can exist over a range of component chemicals; a constituent of alloys that is formed when atoms of an element are incorporated into the crystals of a metal
  642. solidification
    the process of becoming hard or solid by cooling or drying or crystallization
  643. solution
    a homogeneous mixture of two or more substances; frequently (but not necessarily) a liquid solution
  644. spar
    a stout rounded pole of wood or metal used to support rigging
  645. sparingly
    to a meager degree or in a meager manner
  646. specie
    coins collectively
  647. species
    (biology) taxonomic group whose members can interbreed
  648. specific
    stated explicitly or in detail
  649. specific gravity
    the density of a substance relative to the density of water
  650. specifically
    in distinction from others
  651. sphalerite
    an ore that is the chief source of zinc; consists largely of zinc sulfide in crystalline form
  652. spinel
    a hard glassy mineral consisting of an oxide of magnesium and aluminum; occurs in various colors that are used as gemstones
  653. spodumene
    a pyroxene mineral consisting of lithium aluminum silicate; a source of lithium
  654. stalactite
    a cylinder of calcium carbonate hanging from the roof of a limestone cave
  655. stannite
    a dark grey mineral with a metallic luster that is a source of tin
  656. star-shaped
    shaped like a star
  657. steel
    an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range
  658. stibnite
    a soft grey mineral; the chief ore of antimony
  659. streak
    a narrow marking of a different color or texture from the background
  660. strontianite
    a mineral consisting of strontium carbonate
  661. strontium
    a soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite
  662. structurally
    with respect to structure
  663. structure
    a thing constructed; a complex entity constructed of many parts
  664. sulfate
    a salt or ester of sulphuric acid
  665. sulfide
    a compound of sulphur and some other element that is more electropositive
  666. sulfur
    an abundant tasteless odorless multivalent nonmetallic element; best known in yellow crystals; occurs in many sulphide and sulphate minerals and even in native form (especially in volcanic regions)
  667. survey
    consider in a comprehensive way
  668. suture
    a seam used in surgery
  669. sylvanite
    a silver-white mineral consisting of silver gold telluride; a source of gold in Australia and America
  670. sylvite
    a mineral consisting of native potassium chloride; an important ore of potassium that is found in sedimentary beds
  671. symbol
    something visible that by association or convention represents something else that is invisible
  672. synonym
    two words that can be interchanged in a context are said to be synonymous relative to that context
  673. synthesis
    the combination of ideas into a complex whole
  674. system
    a group of independent but interrelated elements comprising a unified whole
  675. tabular
    flat; like a table in form
  676. talc
    a fine grained mineral having a soft soapy feel and consisting of hydrated magnesium silicate; used in a variety of products including talcum powder
  677. tantalite
    a mineral consisting of tantalum oxide of iron and manganese that occurs with niobite or in coarse granite; an ore of tantalum
  678. tantalum
    a hard grey lustrous metallic element that is highly resistant to corrosion; occurs in niobite and fergusonite and tantalite
  679. tarnish
    make dirty or spotty, as by exposure to air; also used metaphorically
  680. tarry
    leave slowly and hesitantly
  681. telluride
    any binary compound of tellurium with other more electropositive elements
  682. tellurium
    a brittle silver-white metalloid element that is related to selenium and sulfur; it is used in alloys and as a semiconductor; occurs mainly as tellurides in ores of copper and nickel and silver and gold
  683. temperature
    the degree of hotness or coldness of a body or environment (corresponding to its molecular activity)
  684. terminated
    having come or been brought to a conclusion
  685. tetra
    brightly colored tropical freshwater fishes
  686. tetragonal
    of or relating to or shaped like a quadrilateral
  687. thermal
    relating to or associated with heat
  688. Thomson
    United States composer who collaborated with Gertrude Stein (1896-1989)
  689. thorite
    a radioactive mineral consisting of thorium silicate; it is a source of thorium that is found in coarse granite
  690. thorium
    a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands
  691. thortveitite
    a mineral consisting of scandium yttrium silicate; a source of scandium
  692. tile
    a flat thin rectangular slab (as of fired clay or rubber or linoleum) used to cover surfaces
  693. tin
    a silvery malleable metallic element that resists corrosion; used in many alloys and to coat other metals to prevent corrosion; obtained chiefly from cassiterite where it occurs as tin oxide
  694. tinge
    color lightly
  695. titanium
    a light strong grey lustrous corrosion-resistant metallic element used in strong lightweight alloys (as for airplane parts); the main sources are rutile and ilmenite
  696. titanium dioxide
    a white powder used as a pigment for its high covering power and durability
  697. titanium oxide
    a white powder used as a pigment for its high covering power and durability
  698. topaz
    a mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone
  699. toxic
    of or relating to or caused by a toxin or poison
  700. translucent
    allowing light to pass through diffusely
  701. transparent
    transmitting light; able to be seen through with clarity
  702. transverse
    extending or lying across; in a crosswise direction; at right angles to the long axis
  703. tremolite
    a white or pale green mineral (calcium magnesium silicate) of the amphibole group used as a form of asbestos
  704. triclinic
    having three unequal crystal axes intersecting at oblique angles
  705. tridymite
    a mineral form of silica
  706. trigonal
    having threefold symmetry
  707. trioxide
    an oxide containing three atoms of oxygen in the molecule
  708. trivalent
    having a valence of three
  709. tungstate
    a salt of tungstic acid
  710. turquoise
    a shade of blue tinged with green
  711. Tuscan
    of or relating to or characteristic of Tuscany or its people
  712. Tuscany
    a region in central Italy
  713. twin
    either of two offspring born at the same time from the same pregnancy
  714. twins
    (mineralogy) two interwoven crystals that are mirror images on each other
  715. type metal
    an alloy of tin and lead and antimony used to make printing type
  716. typically
    in a typical manner
  717. unnamed
    being or having an unknown or unnamed source
  718. unstable
    subject to change; variable
  719. untarnished
    (of reputation) free from blemishes
  720. uraninite
    a mineral consisting of uranium oxide and trace amounts of radium and thorium and polonium and lead and helium; uraninite in massive form is called pitchblende which is the chief uranium ore
  721. uranium
    a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons
  722. uranyl
    the bivalent radical UO2 which forms salts with acids
  723. urea
    the chief solid component of mammalian urine; synthesized from ammonia and carbon dioxide and used as fertilizer and in animal feed and in plastics
  724. USA
    North American republic containing 50 states - 48 conterminous states in North America plus Alaska in northwest North America and the Hawaiian Islands in the Pacific Ocean; achieved independence in 1776
  725. used
    previously used or owned by another
  726. usually
    under normal conditions
  727. vanadate
    a salt or ester of vanadic acid; an anion containing pentavalent vanadium
  728. vanadinite
    a mineral consisting of chloride and vanadate of lead; a source of vanadium
  729. vanadium
    a soft silvery white toxic metallic element used in steel alloys; it occurs in several complex minerals including carnotite and vanadinite
  730. vanadium pentoxide
    any of various oxyacids of vanadium; known mostly in the form of its salts
  731. variable
    something that is likely to vary; something that is subject to variation
  732. variably
    with variation; in a variable manner or to a variable degree
  733. variety
    a category of things distinguished by some common characteristic or quality
  734. variously
    in diverse ways
  735. varying
    marked by diversity or difference
  736. vein
    a blood vessel that carries blood from the capillaries toward the heart
  737. vermiculite
    any of a group of yellow or brown hydrous silicate minerals having a micaceous structure
  738. vesuvianite
    a green or yellow or brown mineral consisting of a hydrated silicate; it occurs as crystals in limestone and is used a gemstone
  739. Vesuvius
    a volcano in southwestern Italy on the Mediterranean coast; a Plinian eruption in 79 AD buried Pompeii and killed Pliny the Elder; last erupted in 1944
  740. violet
    a variable color that lies beyond blue in the spectrum
  741. vitreous
    relating to or resembling or derived from or containing glass
  742. volcanic
    igneous rock produced by eruption and solidified on or near the earth's surface; rhyolite or andesite or basalt
  743. volcanic rock
    extrusive igneous rock solidified near or on the surface of the Earth
  744. vulcanite
    a hard nonresilient rubber formed by vulcanizing natural rubber
  745. water softener
    a substance (such as sodium chloride) that lessens the hardness of water by replacing calcium and magnesium ions with sodium ions and so gives the water more efficient sudsing power
  746. wax
    any of various substances of either mineral origin or plant or animal origin; they are solid at normal temperatures and insoluble in water
  747. waxy
    made of or covered with wax
  748. Webster
    English playwright (1580-1625)
  749. weighing
    careful consideration
  750. western
    a sandwich made from a western omelet
  751. western United States
    the region of the United States lying to the west of the Mississippi River
  752. white
    being of the achromatic color of maximum lightness; having little or no hue owing to reflection of almost all incident light
  753. widely
    to a great degree
  754. wollastonite
    a white or greyish mineral typically found in metamorphic limestone; a silicate of calcium
  755. wulfenite
    a yellow to orange or brown mineral used as a molybdenum ore
  756. wurtzite
    a brownish-black mineral consisting of zinc sulfide
  757. xenotime
    a brown-to-yellow mineral that is a phosphate of yttrium in crystalline form
  758. yellow
    yellow color or pigment; the chromatic color resembling the hue of sunflowers or ripe lemons
  759. yellow green
    a shade of green tinged with yellow
  760. yellowish
    of the color intermediate between green and orange in the color spectrum; of something resembling the color of an egg yolk
  761. yellowish brown
    a medium to dark tan color
  762. yellowish green
    a shade of green tinged with yellow
  763. yttrium
    a silvery metallic element that is common in rare-earth minerals; used in magnesium and aluminum alloys
  764. Zaire
    a republic in central Africa; achieved independence from Belgium in 1960
  765. Zealand
    the largest island of Denmark and the site of Copenhagen
  766. zeolite
    any of a family of glassy minerals analogous to feldspar containing hydrated aluminum silicates of calcium or sodium or potassium; formed in cavities in lava flows and in plutonic rocks
  767. zinc
    a bluish-white lustrous metallic element; brittle at ordinary temperatures but malleable when heated; used in a wide variety of alloys and in galvanizing iron; it occurs naturally as zinc sulphide in zinc blende
  768. zinkenite
    a steel grey metallic mineral (a sulphide of lead and antimony)
  769. zinnwaldite
    a mica containing iron and lithium
  770. zircon
    a common mineral occurring in small crystals; chief source of zirconium; used as a refractory when opaque and as a gem when transparent
  771. zirconium
    a lustrous grey strong metallic element resembling titanium; it is used in nuclear reactors as a neutron absorber; it occurs in baddeleyite but is obtained chiefly from zircon
  772. zirconium oxide
    a white crystalline oxide; used in refractories and in insulation and abrasives and enamels and glazes