QUARTZ PSEUDOMORPH AFTER CALCITE, PYRITE

A perimorphic crust, composed by small quartz crystals, which had grown on dissapeared scalenohedra calcite crystals, peppered by very bright pyritohedron crystals. A curious sample for the collector, mainly for pseudomorphic or similar mineral collectors. THE MAIN CRYSTAL IS: 4,5 x 3 x 1,5 cm.