Classic specimen of yellow-metallic pyrite crystals to perched on rounded groups of specular dark red sphalerite crystals. This undamaged specimen ...
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From Deveti Septemvri Mine, Madan District, Rhodope Mountains, Bulgaria Sparkling cluster of lustrous translucent gray quartz crystals overgrown on...
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From Casapalca District, Huarochiri Province, Peru Large lustrous striated cubic yellow-metallic pyrite crystals with black-metallic sphalerite cry...
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