Product Details

Dimensions: 17.89 x 15.06 x 10.21 cm Weight: 67.5 oz (1.91 kg) Locality: Casteel Mine, Missouri, USA Mineral(s): Chalcopyrite This Large chalcopyrite specimen features metallic chalcopyrite crystal growth on matrix. The surface shows brassy gold coloration with natural iridescent areas and textured crystal coverage across the host rock. ABOUT Chalcopyrite is a copper iron sulfide mineral commonly found in hydrothermal deposits and associated with a variety of metallic minerals. Material from the Casteel Mine in Missouri is known for metallic crystal growth on matrix with bright reflective surfaces and occasional iridescence caused by natural surface oxidation. Large specimens from this locality are collected for their size, texture, and metallic luster.