9btcee ((MUSCOVITE, EPITAXIAL PYRITE on ARSENOPYRITE)) $1 MINIMUM BID, Panasqueira, Covilha, Portugal, 11.5 x 9 x 2 cm, Cabinet, | |
Here is a plate of Muscovite with a few Calcite and Arsenopyrite crystals. The Arsenopyrite have an epitaxial overgrowth of Pyrite. |