Calcium phosphate

Calcium phosphate is a chemical compound. Its chemical formula is Ca3(PO4)2, although there are other formulas, like Ca2HPO4 (dicalcium phosphate) and Ca(H2PO4)2 (monocalcium phosphate). It is made of calcium and phosphate ions.
Properties.
It is a white or gray solid. It becomes more insoluble when heated; most chemicals become more soluble (more easily dissolved). 
Occurrence.
It is found in teeth, bones, and milk. It is found in the ground, too.
Uses.
It is used to make phosphoric acid. It is used to make fertilizer.
It is also used in bovine milk