opaque gem
English Thesaurus
1. a gemstone that is opaque (noun.substance)
| hypernym | : | gem, gemstone, stone, |
| definition | : | a crystalline rock that can be cut and polished for jewelry (noun.substance) |
| hyponym | : | chrysoberyl, |
| definition | : | a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone (noun.substance) |
| hyponym | : | opal, |
| definition | : | a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones (noun.substance) |
| hyponym | : | cat's eye, |
| definition | : | any of various gems (as chrysoberyl or chalcedony) that reflect light when cut in a rounded shape (noun.substance) |
| hyponym | : | coral, precious coral, red coral, |
| definition | : | the hard stony skeleton of a Mediterranean coral that has a delicate red or pink color and is used for jewelry (noun.substance) |
| hyponym | : | jade, jadestone, |
| definition | : | a semiprecious gemstone that takes a high polish; is usually green but sometimes whitish; consists of jadeite or nephrite (noun.substance) |
| hyponym | : | jasper, |
| definition | : | an opaque form of quartz; red or yellow or brown or dark green in color; used for ornamentation or as a gemstone (noun.substance) |
| hyponym | : | lapis lazuli, lazuli, |
| definition | : | an azure blue semiprecious stone (noun.substance) |
| hyponym | : | turquoise, |
| definition | : | a blue to grey green mineral consisting of copper aluminum phosphate (noun.substance) |
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