Siderite, Dolomite, Pyrrhotite
Cabinet, 9.5 x 7.4 x 2.2 cm
Morro Velho mine (incl. Mina Velha; Mina Grande), Nova Lima, Iron Quadrangle, Minas Gerais, Southeast Region, Brazil
Ex. Dr. Gary Hansen
A fine segregated crust with a hole in the center of very glassy, gemmy, yellow-green siderite blades and lustrous, translucent, light gray dolomite rhombs. The dolomite rhombs are preferentially and richly covered with bright, brassy, tabular, hexagonal pyrrhotite crystals. This is classic combination material from the famous 1960s find at the Morro Velho Gold Mine of Brazil. Ex Dr. Gary Hansen Collection.