formanite

noun

for·​man·​ite

ˈfȯrməˌnīt

plural -s

: a mineral (U,Zr,Th,Ca)(Ta₁Nb)O₄ consisting essentially of an oxide of uranium, zirconium, thorium, calcium, tantalum, and niobium with some rare-earth metals and isomorphous with fergusonite

Word History

Etymology

Francis German Forman, 20th century Australian geologist + English -ite

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