Mineral Specimen #2787 Polydymite Included in Twinned Calcite
Gray's Quarry, Hamilton, Hnacock Co., Illinois
Ex. William Sanborn, Ex. Steve Pullman, Ex. Kristalle
This specimen consists of a mass of twinned Calcite crystals. The crystals have a high luster. Within the Calcite, there are small inclusions of the rare nickel sulfide, Polydymite. The specimen is in very good condition with no appreciable damage.