Anapaite

General Information: Chemical Formula:Ca2Fe++(PO4)2·4(H2O) Composition:(Molecular Weight = 398.01 gm)Calcium 20.14 % CaIron 14.03 % FePhosphorus 15.56 % P Hydrogen 2.03 % H Oxygen 48.24 % O  Empirical Formula: Ca2Fe2+(PO4)2·4(H2O)Physical Properties: Cleavage:[???] Perfect, [???] Distinct Color:white or green. Density:2.8 - 2.81, Average = 2.8 Diaphaniety:Transparent Habits:Encrustations - Forms crust-like aggregates on matrix., Tabular - Form dimensions are thin in one direction., Hardness:3-4 - Calcite-Fluorite Luminescence:Non-fluorescent. Luster:Vitreous (Glassy) Streak:whiteMore details...

Ca2Fe(PO4)2 4(H2O)