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صورة:Calcium sulfate hemihydrate.jpg


A sample of calcium sulfate hemihydrate. Picture taken by Martin Walker in June 2005.

Public domain I, the copyright holder of this work, hereby release it into the public domain. This applies worldwide.

In case this is not legally possible:
I grant anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.


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