OPAQUE GEM

Pronunciation (US): (GB):

Meaning:

A gemstone that is opaque

Classified under:

Nouns denoting substances

Hypernyms ("opaque gem" is a kind of...):

gem; gemstone; stone (a crystalline rock that can be cut and polished for jewelry)

Hyponyms (each of the following is a kind of "opaque gem"):

chrysoberyl (a rare hard yellow green mineral consisting of beryllium aluminate in crystal form; used as a gemstone)

opal (a translucent mineral consisting of hydrated silica of variable color; some varieties are used as gemstones)

cat's eye (any of various gems (as chrysoberyl or chalcedony) that reflect light when cut in a rounded shape)

coral; precious coral; red coral (the hard stony skeleton of a Mediterranean coral that has a delicate red or pink color and is used for jewelry)

jade; jadestone (a semiprecious gemstone that takes a high polish; is usually green but sometimes whitish; consists of jadeite or nephrite)

jasper (an opaque form of quartz; red or yellow or brown or dark green in color; used for ornamentation or as a gemstone)

lapis lazuli; lazuli (an azure blue semiprecious stone)

turquoise (a blue to grey green mineral consisting of copper aluminum phosphate)