(CaSO burnt anhydrite gypsum, 4). At the chemical constituents of anhydrous gypsum (varies depending on the region). At the CaO lime, respectively. 34.24 sulfuric anhydride (SO (3), respectively 44.63 crystal water H O 2 (2), silica SiO),
iron sulfide Fe O 0.06 2 (3). The shape of the block 6 inches.
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