Group of arsenopyrite crystals with an intense luster and complex fan-shaped growth forms which confers a curved shape to the specimen. One could see some defined faces but all the specimen is very complex. With some muscovite. THE MAIN CRYSTAL IS: 2,7 x 1 x 0,8 cm.
LOCATED: MINAS DE PANASQUEIRA, ALDEIA DE SÃO FRANCISCO DE ASSIS, COVILHÃ, CASTELO BRANCO, COVA DA BEIRA, PORTUGAL