9dhuu ((PYRRHOTITE, CALCITE, CHALCOPYRITE; low grade gold ore)), $10 MINIMUM BID, Battle Mountain, Nevada, 10 x 9.5 x 4 cm, Cabinet, U of U Specimen | |
Here is low grade Gold ore from Battle Mountain with Pyrrhotite, Calcite and Chalcopyrite. ex University of Utah Dept of Geol and Geophys. |