Tapiolite

(Fe,Mn)(Ta,Nb)2O6

This sample of tapiolite is displayed in the Smithsonian Museum of Natural History. Tapiolite is an oxide mineral of niobium, manganese, tantalum and iron. It has the composition (Fe,Mn)(Ta,Nb)2O6. This sample is about 3 cm and is from Alto do Giz mine, Equador, Rio Grande do North, Brazil.

Mindat: Tapiolite

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