CuFeZn12Sb4S13

CuFeZn12Sb4S13 is a mineral species belonging to the tetrahedrite group. Its chemical formula indicates a complex arrangement of copper, iron, zinc, antimony, and sulfur. This specific composition is referred to as a "high-zinc" tetrahedrite, where zinc significantly replaces copper and iron in the crystal structure. The mineral typically crystallizes in the cubic crystal system. Physical properties include a metallic luster, a dark gray to black color, and a hardness of approximately 3.5 on the Mohs scale. It is often found in hydrothermal ore veins, commonly associated with other sulfide minerals such as chalcopyrite, sphalerite, and pyrite. CuFeZn12Sb4S13 is relatively rare compared to more common tetrahedrite varieties. Its discovery and official recognition as a mineral species occurred relatively recently, distinguishing it based on its unique elemental proportions. The mineral's geological occurrence is primarily linked to polymetallic deposits. Further research continues to explore its specific crystallographic details and potential economic significance.