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ST564 - Bournonite $ 1200 Machacamarca, Potosi, Bolivia small cabinet - 8 x 6 x 5 cm Large 'cogwheels' or metallic grey Bournonite on matrix. Main crystal is 4cm wide a stands uprite perfectly for display. There are other smaller Bournonite crystals present along with small Tetrahedrite crystals. ©2010-2018 Marin Mineral |