The inorganic component of bones in living organisms is hydroxyapatite.

Here's a breakdown:

* Hydroxyapatite is a mineral composed of calcium phosphate, with the chemical formula Ca₁₀(PO₄)₆(OH)₂.

* It makes up about 65% of bone mass and provides the hardness and rigidity that bones need to support the body and protect organs.

* The hydroxyapatite crystals are arranged in a specific pattern that gives bone its strength.

* The remaining 35% of bone mass is made up of organic components such as collagen fibers, which provide flexibility and resilience.

The inorganic component of bones is crucial for their structural function and overall health.