A seldom seen Calcite from the Osceola Mine along the Animas River near Silverton. This specimen features sharp, well-formed rhombohedra of Calcite up to 1.2 cm that have a medium chocolate-brown coating of an unknown manganese oxide. Additionally, the crystals are sitting on excellent quality, lustrous, GEM / gemmy Quartz prisms on matrix. From the collection of T. M. Phetteplace (specimen #1161) originally purchased from the famous Columbine Mineral Shop in Ouray, Colorado.
ex. T. M. Phetteplace collection
Locality: Osceola Mine, Cunningham Gulch, Silverton, San Juan County, Colorado
Specimen Size: 6.1 x 4.0 x 3.0 cm (small cabinet)
Largest Crystal: 1.2 cm
Shipping from United States
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