Crystals Rocks Minerals to Tempt and Tantalise You

Calcium Sulphate




Calcium sulphate occurs naturally in two forms one of which is hydrated (with water) and the other is anhydrous (without water).  The anhydrous variety is mainly found as the mineral anhydrite while the hydrated variety is better known as alabaster or gypsum.

Calcium sulphate can either be found as a white powder which is completely odourless or as crystals which can often be tinged with colour caused by impurities.


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