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Gypsum grinding calcium.Gypsum grinding calcium how to choose gypsum grinding mill raw gypsum is also called dihydrate gypsum, hydrogypsum or soft gypsum, which is usually dense or threadiness with mohs hardness of 2, anhydrite is anhydrous calcium sulfate, usually dense or granular in white, off-white, glass gloss, with mohs hardness of 3 3.We will discuss about more about gypsum.
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