This specimen is very interesting because it combines a quartz crystal, partially covered with bright muscovite and pyrite, with the more usual rhombohedral faces on which has grown another quartz crystal with an unusual habit. This one shows developed rhombohedral faces on the prism and the presence of trapezoidal and dipyramidal faces. Very rare for this locality. THE MAIN CRYSTAL IS: 7,5 x 2,9 x 1,2 cm.

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

DIMENSIONS: 7.5x3.6x3.4