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Q&A Biological reason for organically formed crystals in or outside of body

So, it is relatively common to have various creatures grow crystals. This generally happens outside of the body (at least partially), but internal crystals aren't unknown either (see for example, e...

2 answers  ·  posted 4y ago by Mark Gardner‭  ·  last activity 4y ago by Mark Gardner‭

Question biology xenobiology