transparent gem

Definitions of transparent gem
  1. noun
    a gemstone having the property of transmitting light without serious diffusion
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    any of a group of hard glassy minerals (silicates of various metals) used as gemstones and as an abrasive
    a transparent purple variety of quartz; used as a gemstone
    a transparent variety of beryl that is blue green in color
    calcedony, chalcedony
    a milky or greyish translucent to transparent quartz
    a brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone
    a green variety of chalcedony valued as a gemstone
    semiprecious yellow quartz resembling topaz
    adamant, diamond
    very hard native crystalline carbon valued as a gem
    a green transparent form of beryl; highly valued as a gemstone
    a pinkish lilac crystal form of the mineral spodumene that is used as a gemstone
    a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar
    a kind of pink beryl used as a gemstone
    a pale green variety of chrysolite; used as a gemstone
    a transparent deep red variety of corundum; used as a gemstone and in lasers
    water sapphire
    a deep blue cordierite often used as a gemstone
    a precious transparent stone of rich blue corundum valued as a gemstone
    a green transparent form of the mineral spodumene used as a gemstone
    aventurine, sunstone
    a translucent quartz spangled with bits of mica or other minerals
    a mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone
    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
    almandine, almandite
    a deep red garnet consisting of iron aluminum silicate
    an impure form of quartz consisting of banded chalcedony; used as a gemstone and for making mortars and pestles
    bloodstone, heliotrope
    green chalcedony with red spots that resemble blood
    black diamond, carbonado
    an inferior dark diamond used in industry for drilling and polishing
    carnelian, cornelian
    a translucent red or orange variety of chalcedony
    a garnet consisting of calcium iron silicate and having any color ranging from yellow and green to brown and black; used as gemstone
    deep-red cabochon garnet cut without facets
    aventurine spangled densely with fine gold-colored particles
    cinnamon stone, essonite, hessonite
    a garnet ranging in color from yellow to brown
    a chalcedony with alternating black and white bands; used in making cameos
    a green slightly translucent variety of chalcedony used as a gemstone
    a deep red garnet used as a gemstone
    a red or pink variety of garnet used as a gemstone
    sard, sardine, sardius
    a deep orange-red variety of chalcedony
    black tourmaline
    star sapphire
    a sapphire that when cut shows a starlike figure in reflected light because of its crystalline structure
    type of:
    gem, gemstone, stone
    a crystalline rock that can be cut and polished for jewelry
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