Calamine: 1.high quality and competitive price 2.Detoxification,improving eyesight, ... swollen of eye, anabrosis, pussy itch,etc.4.Genera classification:zinc compounds class 5.Nature and flavor:sweet,warm-natured,non ... . Chemical composition: zinc carbonate, calcium oxide, magnesium oxide, ferric oxide, manganese oxide.8. The resource distribution: Hunan, Guangxi, Sichuan, Yunnan. Calamine (Luganshi)