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Group of doubly terminated Quartz crystals, one of them clearly dominant and adorned by a Siderite crystal of considerable size with a hexagonal outline and light brown tone on the back. Other smaller Siderite crystals associated with Pyrite crystals are sprinkled over it.
A classic paragenesis for the Panasqueira mines from where this specimen came.
Minas da Panasqueira, Aldeia de São Francisco de Assis, Covilhã, Castelo Branco, Cova da Beira, Centro Region Portugal
Specimen size: 6.3 × 2.9 × 2.9 cm = 2.48” × 1.14” × 1.14”
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