swl CALCITE with ARSENOPYRITE on QUARTZ, Yaogangxian Mine, Hunan Province, China, 9 x 6 x 3.5 cm, cabinet | |
This is a matrix of Quartz crystals covered with undamaged Calcite crystals. Beneath one group of Calcite crystals is an undamaged group of Arsenopyrite crystals with an iridescent patina. |