types:
mispickel
a silver-white or grey ore of arsenic
asfalt,
asfaltbeton
a dark bituminous substance found in natural beds and as residue from petroleum distillation; consists mainly of hydrocarbons
beril
the chief source of beryllium; colored transparent varieties are valued as gems
borax
an ore of boron consisting of hydrated sodium borate; used as a flux or cleansing agent
chrysoberil
a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone
amaril
a hard grey-black mineral consisting of corundum and either hematite or magnetite; used as an abrasive (especially as a coating on paper)
loodglans
soft blue-grey mineral; lead sulfide; a major source of lead
pleistersteen
a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)
bariumsulfaat
a white or colorless mineral (BaSO4); the main source of barium
bergteer
a thick black tar intermediate between petroleum and asphalt
glimmer,
mica,
vislijm
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
opaal
a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones
kwarts
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
holspaat,
rondhout,
spaat
any of various nonmetallic minerals (calcite or feldspar) that are light in color and transparent or translucent and cleavable
topaas
a mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone
toermalijn
a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium; it is usually black but occurs in transparent colored forms that are used as gemstones
turkoois,
turquoise
a blue to grey green mineral consisting of copper aluminum phosphate
alabaster,
albast
a compact fine-textured, usually white gypsum used for carving
amethist
a transparent purple variety of quartz; used as a gemstone
asbest
a fibrous amphibole; used for making fireproof articles; inhaling fibers can cause asbestosis or lung cancer
aquamarijn
a transparent variety of beryl that is blue green in color
chalcedon
a milky or greyish translucent to transparent quartz
chrysoliet,
goudsteen
a brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone
kleioker,
oker
any of various earths containing silica and alumina and ferric oxide; used as a pigment
smaragd
a green transparent form of beryl; highly valued as a gemstone
veldspaat
any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium
karbonkel
deep-red cabochon garnet cut without facets
hyacint
a red transparent variety of zircon used as a gemstone
ijzererts
an ore from which iron can be extracted
kalkspaat
a common mineral consisting of crystallized calcium carbonate; a major constituent of limestone
robijn
a transparent deep red variety of corundum; used as a gemstone and in lasers
saffier
a precious transparent stone of rich blue corundum valued as a gemstone
speksteen
a soft heavy compact variety of talc having a soapy feel; used to make hearths and tabletops and ornaments
kleermakerskrijt
a soft white compact talc used to mark cloth or to remove grease stains