ishikawaite
noun
ishi·ka·wa·ite
| \ ˌishēˈkäwəˌīt\
plural -s
Definition of ishikawaite
: 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
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