Group of cassiterite crystals, twinned and interpenetrated, with good brilliance and transparence that allow us to see those characteristic honey-colored tones. It is accompanied by a matrix with hyaline quartz crystals, one of them predominant, also pyrite and siderite tiny crystals. The main crystal is: 1,4 x 1,2 x 1,2 cm. 0,55 x 0,47 x 0,47 Inc.

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

DIMENSIONS: 4.1x4x4