Dolomite, Magnesite
Serra das Eguas, Brumado (Bom Jesus dos Meiras), Bahia, Brazil
Small Cabinet, 6.2 x 4.2 x 1.3 cm
Here, you have a triangular twin of dolomite, with a glassy triangular face in the center and frosted bevels, intergrown with a sharp rhomb of magnesite, classic from this locality. That hint of color in the magnesite is from hematite inclusions.