A really interesting specimen. A huge size hyaline crystal with inclusions, and some greenish tones in some areas, those remember prase variety. Also a small quartz hyaline crystal with greenish tone and transparence. Main crystal is partially covered on some faces by several siderite crystals with a deep green color, some of them are well developed showing acute forms. It is accompanied by calcite and pyrite. THE MAIN CRYSTAL IS: 7.1 x 2.5 x 2.2 cm.
LOCATED: MINAS DE PANASQUEIRA, ALDEIA DE SÃO FRANCISCO DE ASSIS, COVILHÃ, CASTELO BRANCO, COVA DA BEIRA, PORTUGAL