ruby spinel

ruby spinel

n

(Minerals) a red transparent variety of spinel, used as a gemstone

ru′by spinel`

n.

a deep red, transparent variety of spinel, used as a gem.

[1830–40]

Thesaurus

Noun

1.

ruby spinel - a spinel used as a gemstone (usually dark red) spinel ruby spinel - a hard glassy mineral consisting of an oxide of magnesium and aluminum; occurs in various colors that are used as gemstones almandine - a purple variety of the ruby spinel balas, balas ruby - a pale rose-colored variety of the ruby spinel rubicelle - a yellow or orange variety of ruby spinel