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RM2838   Bournonite, pyrite, sphalerite and quartz

Quiruvilca Mine, Quiruvilca, Santiago de Chuco, La Libertad, Perú

Group of cyclically twinned bournonite crystals, with a metallic gray color, interpenetrating each other. They are disposed on a matrix of very brilliant octahedral pyrite, partially covered by complex sphalerite crystals.


Size: 6 x 4.5 x 3.8 cm.

 
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