Phosphate Rock an overview | ScienceDirect Topics
Ian HoreLacy, in Uranium for Nuclear Power, 2016. Processing phosphates. Phosphate rock (phosphorite) is a marine sedimentary rock that contains 18–40% P 2 O 5, as well as some uranium with all its decay products, often 70–200 ppm U, and sometimes up to 800 main mineral in the phosphate rock is apatite, and most commonly, fluorapatite—Ca 5 (PO 4) 3 F or Ca 10 (PO 4) 6 .