sa·mar·skite (sə mär′skīt, sam′ər skīt′)
noun
a dark-colored, hard, radioactive, mineral (Y,Ce,U,Ca,Fe,Pb,Th)(Nb,Ta,Ti,Sn)O, that is an ore of uranium or niobium
Etymology: Fr: so named (1847) after Col. Samarski, Russ mining official
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