Extract Tantalum Niobium from Pegmatites
Specific identified tantalumniobium minerals found in the area are tantalitecolumbite [(Fe, Mn) (Ta, Nb2)O6], tapiolite (FeTa2O6), and pyrochloremicrolite (Ca2Ta2O7). The tantalum resource sections of the pegmatites have no zonation of a scale that could be segregated during mining. Traditional hand cobbing methods of pegmatite beneficiation generally are not applicable to domestic ...