sinhalite

noun

sin·​ha·​lite

ˈsin(h)əˌlīt

plural -s

: a mineral consisting of a magnesium aluminum borate that is structurally related to olivine and is occasionally used as a gem

Word History

Etymology

sinhal- (as in sinhalese) + -ite; from the fact that the gemstones identified as sinhalite came from Sri Lanka

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