tourmaline (n)

n15076619

type n
lex_filenum 27
def a mineral that is a complex borosilicate and hydroxide of aluminum containing iron and magnesium and calcium and lithium and sodium
def it is usually black but occurs in transparent colored forms that are used as gemstones
Outgoing links
Hypernym transparent gem; mineral
Hyponym schorl
Incoming links
Hyponym mineral; transparent gem
Hypernym schorl

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