Fluorite

likewise understood as fluorspar ,Air Max 90 Boot, a ore whose main makeup namely calcium fluoride (CaF2), containing impurities ,Women's Air Max 90, Ca Y and Ce and additional rare globe elements are often replaced too contains a small quantity of Fe2O3, SiO2 , and trace amounts of Cl,Women's Air Max 97, O3,Air Max 97, He ,Women's Air Max 2009, etc. Nature of the fluorite was often shine colors ,Women's Air Max Ltd, hardness lower than the sword .