- MD-219260
- Chalcomenite
- El Dragon mine, Antonio Quijarro Province, Potosi Department, Bolivia
- Thumbnail, 1.8 x 1.3 x 1.3 cm
- SOLD
A specimen of chalcomenite, a rare by-product of oxidation of primary copper minerals. It is only ever seen in fairly tiny crystals. At this locality, it results from the oxidation of krutaite.