ishikawaite

noun

ishi·​ka·​wa·​ite

ˌishēˈkäwəˌīt

plural -s

: a rare mineral (U, Fe, Y, etc.)(Nb, Ta)O₄ consisting of an oxide of uranium, iron, niobium, tantalum, yttrium, and the rare-earth metals

Word History

Etymology

Ishikawa district, north central Honshu, Japan, its locality + English -ite

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