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Mineral Name Variety Locality
Columbite Brown Derby Mine, Gunnison Co., Colorado
Columbite Manganotantalite Harding Mine, New Mexico
Columbite Middletown, Connecticut
Columbite   Governador Valadares, Brazil
Columbite Minas Gerais, Brazil
Columbite Black Hills, South Dakota
Columbite Middletown, Connecticut
Columbite South Dakota, USA
Columbite   Governador Valadares, Brazil