A huge size specimen formed by a parallel growth of quartz crystals, with well defined faces and edges, transparent and good luster. It is partially covered by siderite crystals, some of them with a hexagonal shape due to an uniaxial growth and peppered by pyrite. A display specimen. THE MAIN CRYSTAL IS: 25 x 6,5 x 5,5 cm.

ORIGIN: PANASQUEIRA MINES, VILLAGE OF SÃO FRANCISCO DE ASSIS, COVILHÃ, CASTELO BRANCO, COVA DA BEIRA, PORTUGAL

DIMENSIONS: 25x13x10.2