Mineral: Chalcopyrite with Arsenopyrite, Calcite and Muscovite
Locality: Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro, Portugal
Dimensions: 11.5x8.5x6.5 cm's

Description: The large chalcopyrite crystal measures 7x6x3.8 cm's

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