Sphalerite, Calcite from Huanggang Fe-Sn deposit, Hexigten Banner, Chifeng City, Inner Mongolia, China. Yellow or brown color translucent sphalerite crystals on the pale pink calcite crystals, which has clear edges also as small sphalerite crystals, main display face damage free. size: 8.5×7×4.6cm, NO.20230129SC69.