20hhgd.is ((QUARTZ, ARSENOPYITE, SIDERITE)). $35 MINIMUM BID, Panasqueira Mines, Covilhã, Castelo Branco, Portugal, 4 x 3 x 3 cm, Miniature | |
A terminated transparent Quartz crystal with lustrous silver colored Arsenopyrite and light tan Siderite. All the darker black looking areas are lustrous silver colored Arsenopyrite. ex Glen Davidson collection. |