ankaratrite

noun

an·​ka·​ra·​trite

-ä‧ˌtrīt

plural -s

: a melanocratic nephelite-basalt containing some feldspar, phenocrysts of olivine, microlites of titanaugite, and from 10 to 15 percent nephelite

Word History

Etymology

French ankaratrite, from Ankaratra mountains, Madagascar, its locality + French -ite

First Known Use

1916, in the meaning defined above

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