Calcium phosphate
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Calcium phosphate, Ca3(PO4)2, is a mineral. It is found in nature as a rock in Morocco, Israel, Egypt, and Kola (Russia) and in smaller quantities in some other countries. The natural form is not completely pure, and there are some other components like sand and lime which can change the composition. In terms of P2O5, most calcium phosphate rocks have a content of 30 % to 40 % P2O5 in weight.
Calcium phosphate is an important raw material for the production of phosphoric acid and fertilizers, for example in the Odda process.
Calcium phosphate is also a raising agent (food additives) E341. Is a mineral salt found in rocks and bones, it is used in cheese products. No known side effects.