6hetgr ((WULFENITE)), $5 MINIMUM BID, Ojuela Mine, Mapimi, Duango, Mexico, 10 x 7.5 x 3 cm, Cabinet | |
Here is a nice specimen of Calcite from a cretaceous concretion. Undamaged sharp Calcite crystals. Resembles the Dolomite casts from Tsumeb. Jim McQuire collection. |