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Why don't human bones burn?

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Well, the organic parts (the collagen, marrow, and so forth) do burn. But the mineral part (mostly a form of calcium phosphate) doesn't burn because it is already as oxidized as it gets. read more

Human bones burn when a dead body is cremated which indicates that human bones burn. Perhaps it's a temperature issue: the burn point of bones might be higher than flesh which would lead one to believe that bones don't burn. read more

You cannot burn human bones to ash. It's actually not so easy to get rid of a body. Nowadays, after cremating the bones they place the fragments into a kind of blender which makes the ashes we know. People don't like to see their loved ones' bones in fragments so they make ashes of them, because at least that's unidentifiable. read more

Most tissue composing the human body begins combustion at 572 F. In cremation, the deceased is exposed to several hours of intense heat ranging between 1400 F and 1800 F, vaporizing all organic matter. Result. Some portions of the inorganic bone do survive this process, only as chips and re-fused fragments of calcium phosphate. read more

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