Dims: 1.7 x 1.3 x 0.9" (4.4 x 3.3 x 2.4 cm)
Wt: 4.0 oz. (114 g)
Golconda Mine, Governador Valadares, Minas Gerais, Brazil
This piece consists of a single, loose Columbite crystal that is in good condition, showing light fresh damage only at its base. Its orthorhombic prismatic form is moderately well-defined, though the crystal is somewhat warped and shows considerable healed damage. Its gray-black color and dull, submetallic luster are standard for its specie. There is no host rock present.