Calcite, Hematite, Chalcopyrite
Pea Ridge Mine (Sullivan), Meramec State Park, Washington Co., Missouri, USA
Small Cabinet, 7.3 x 5.3 x 5.3 cm
This specimen features a 5.5-cm calcite crystal canted at an angle, with little balls of hematite and crystals of chalcopyrite both on its surface and included just inside the surface of the crystal. The two minerals are sprinkled on the milky calcite matrix as well.