Kesterite from Pingwu beryl mine, Huya township, Mount Little Xuebaoding, Pingwu Co., Mianyang, Sichuan, China. Kesterite be covered by Mushistonite, sometimes be called as Pandanite, special mineral specie, it is a big crystal, clear and sharp crystal edges, all completed around, also associated with few muscovite. size:1.8×1.5×1cm, NO.20230129XM67.