Major mineral of the bone is
Hydroxyapatite Hydroxyapatite crystals are the major mineral of bone Hydroxyapatite (also k/a bone mineral) is the salt of calcium and phosphorus with the formula Calc(PO4)6(01)2. Structural composition of bone : Also know Bone has to be 50% mineralised to be visible on radiographs.
Calcite
Hydroxyapatite
Calcium oxide
Calcium carbonate