Produktdetails

Dimensions: 9.97 x 6.85 x 2.18 cm Weight: 5 oz (144 g) Locality: Casteel Mine, Missouri, USA Mineral(s): Chalcopyrite, Quartz, Calcite This specimen is primarily composed of Quartz with scattered Chalcopyrite sprinkled across the crystal surfaces and a single double-terminated calcite crystal. The calcite appears to be twinning, with two terminations dovetailing on one of its points. ABOUT The Casteel Mine is known for producing attractive hydrothermal mineral associations featuring Quartz, Chalcopyrite, and Calcite. Quartz is one of the most abundant minerals in the Earth's crust and commonly serves as the host for metallic sulfide mineralization. Chalcopyrite is the primary ore mineral of copper and is recognized by its distinctive brassy metallic luster, while Calcite frequently crystallizes alongside both minerals in hydrothermal veins. Collectors appreciate these Missouri specimens for their contrasting mineral combinations and well-developed crystal formations.