Description: Sphalerite, Chalcopyrite, Fluorite, from Yindu Ag-Pb-Zn deposit, Hexigten Banner, Chifeng City, Inner Mongolia, China, special to see such big size sphalerite crystal associated with chalcopyrite from this location, nice luster, and different color contrast, one small cubic small pale purple fluorite on matrix also, maybe mined out in June 2022.