Can bone mineral be obtained in pure, crystalline form?

Can bone mineral be obtained in pure, crystalline form outside a living organism? Had this been done ever?




[Apatite](http://en.wikipedia.org/wiki/Apatite) is the chemical name for the mineral found in bone and teeth. It is occasionally found in the form of large crystals, such as this:


![enter image description here](https://i.stack.imgur.com/mOsP5.jpg)


BTW, just as bone is made of the mineral apatite, there are critters with skeletons of *silica*, another common mineral, such as [Venus' flower basket](http://en.wikipedia.org/wiki/Venus%27_flower_basket)!


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