- Ferberite, Arsenopyrite, Siderite
- Small Cabinet, 8.6 x 7.0 x 3.0 cm
- Panasqueira Mines, Panasqueira Mine - Couto Mineiro da Panasqueira, Panasqueira, Covilha, Castelo Branco District, Portugal
An exceptional tabular cluster of highly lustrous, well-terminated (some even doubly) bladed Ferberite crystals. The widest of the blades is 4.7 cm across. To make the piece even more extraordinary, there is a very well-developed 1.6 cm Arsenopyrite crystal on the bottom, as well as numerous mm-size Siderite crystals along the back and bottom. There are also five Tetrahedrite (?) crystals (in the second close-up), two singles and one three-crystal cluster, on the Ferberite. Ex. Charlie Key stock.