jhr CALCITE, Ophir Mine, Ophir District, Tooele county, Utah, 9 x 6 x 5.5 cm, | |
Dark brown twinned Calcite crystals. Dark brown from Limonite coating. One crystal has a minor tip cleave but otherwise undamaged. Small white clusters of Hemimorphite clusters and small secondary Calcite on the backside of the specimen. |