ruby spinel

English Thesaurus

1. a spinel used as a gemstone (usually dark red) (noun.substance)

hypernym	:	spinel,
definition	:	a hard glassy mineral consisting of an oxide of magnesium and aluminum; occurs in various colors that are used as gemstones (noun.substance)

hyponym	:	almandine,
definition	:	a purple variety of the ruby spinel (noun.substance)

hyponym	:	balas, balas ruby,
definition	:	a pale rose-colored variety of the ruby spinel (noun.substance)

hyponym	:	rubicelle,
definition	:	a yellow or orange variety of ruby spinel (noun.substance)