Sphalerite with Pyrite - Specimen rare mineral from congo For tumbler grit

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Sphalerite with Pyrite - Specimen rare mineral from congo For tumbler gritMined from: Huanzala Mine, Huallanca District, Ancash, Peru Description: This one of a kind Sphalerite with Pyrite mineral specimen from Peru features a dark, lustrous sphalerite rich matrix accented by bright brassy pyrite crystals scattered across the surface. The sphalerite displays deep charcoal gray to black tones with a glossy metallic to resinous shine, forming clustered, angular crystal faces throughout the piece. The pyrite adds sharp golden