Phosphorite is a phosphate-rich sedimentary rock, that contains between 18% and 40% P2O5. The apatite in phosphorite is present as cryptocrystalline masses referred to as collophane.
Pacific Fertiliser sells processed and refined apatite as soft rock phosphate as straight product or in blends. SRPm general analysis 0-14-0-0 + 32% Ca.
Ca5(PO4)3(F,Cl,OH)
