| has gloss | (noun) a gemstone having the property of transmitting light without serious diffusion
transparent gem |
| lexicalization | eng: transparent gem |
| subclass of | (noun) a crystalline rock that can be cut and polished for jewelry; "he had the gem set in a ring for his wife"; "she had jewels made of all the rarest stones"
stone, gemstone, gem |
| has subclass | (noun) any of a group of hard glassy minerals (silicates of various metals) used as gemstones and as an abrasive
garnet |
| has subclass | (noun) a transparent purple variety of quartz; used as a gemstone
amethyst |
| has subclass | (noun) a transparent variety of beryl that is blue green in color
aquamarine |
| has subclass | (noun) a milky or greyish translucent to transparent quartz
calcedony, chalcedony |
| has subclass | (noun) a brown or yellow-green olivine found in igneous and metamorphic rocks and used as a gemstone
chrysolite |
| has subclass | (noun) a green variety of chalcedony valued as a gemstone
chrysoprase |
| has subclass | (noun) semiprecious yellow quartz resembling topaz
citrine |
| has subclass | (noun) very hard native crystalline carbon valued as a gem
diamond, adamant |
| has subclass | (noun) a green transparent form of beryl; highly valued as a gemstone
emerald |
| has subclass | (noun) a pinkish lilac crystal form of the mineral spodumene that is used as a gemstone
kunzite |
| has subclass | (noun) a transparent or translucent gemstone with a pearly luster; some specimens are orthoclase feldspar and others are plagioclase feldspar
moonstone |
| has subclass | (noun) a kind of pink beryl used as a gemstone
morganite |
| has subclass | (noun) a pale green variety of chrysolite; used as a gemstone
peridot |
| has subclass | (noun) a transparent deep red variety of corundum; used as a gemstone and in lasers
ruby |
| has subclass | (noun) a deep blue cordierite often used as a gemstone
water sapphire |
| has subclass | (noun) a precious transparent stone of rich blue corundum valued as a gemstone
sapphire |
| has subclass | (noun) a green transparent form of the mineral spodumene used as a gemstone
hiddenite |
| has subclass | (noun) a translucent quartz spangled with bits of mica or other minerals
sunstone, aventurine |
| has subclass | (noun) a mineral (fluosilicate of aluminum) that occurs in crystals of various colors and is used as a gemstone
topaz |
| has subclass | (noun) 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
tourmaline |