Learn about Pyrrhotite
bronze lustre sulfide with sharp hex plates and magnetism; prized by collectors for dramatic aesthetics, notable localities, and care tips.Zacatecas
Zacatecas, Mexico — renowned mining district with Ag-Pb-Zn-Cu-Au veins, historic silver ores, silvery wire on calcite, azurite-malachite, and Electric Opal.
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