Bone is a complex tissue that is composed of both organic and inorganic components. The organic components include collagen, which provides flexibility, and osteocytes, which are cells that help to maintain the bone's structure. The inorganic components include calcium, phosphorus, and other mineral salts, which provide strength and hardness.

The mineral salts found in bone are:

* Calcium: Calcium is the most abundant mineral in bone, making up about 39% of its weight. It is essential for the formation of hydroxyapatite, a calcium phosphate mineral that gives bone its strength and hardness.

* Phosphorus: Phosphorus is the second most abundant mineral in bone, making up about 18% of its weight. It is also essential for the formation of hydroxyapatite.

* Magnesium: Magnesium is the third most abundant mineral in bone, making up about 1.5% of its weight. It is important for the formation of hydroxyapatite and for the regulation of calcium and phosphate levels in the body.

* Potassium: Potassium is the fourth most abundant mineral in bone, making up about 0.4% of its weight. It is important for the regulation of water balance and muscle function.

* Sodium: Sodium is the fifth most abundant mineral in bone, making up about 0.2% of its weight. It is important for the regulation of water balance and blood pressure.

These mineral salts are essential for the proper development and maintenance of bone. Without them, bone would be weak and brittle.