ARSENOPYRITE, QUARTZ

This specimen stands out for its very sharp arsenopyrite crystal, with excellent luster. It has very defined faces and edges. It is accompanied by a small siderite crystal, on a matrix of brilliant hyaline quartz crystals.

ORIGIN: PANASQUEIRA MINES, SÃO FRANCISCO DE ASSIS VILLAGE, COVILHÃ, WHITE CASTLE, DA BEIRA CAVE, PORTUGAL

DIMENSIONS: 3,1x3,1x5,0