Best Gypsum Powder
GYPSUM. A very common mineral, hydrated calcium sulfate, CaSO4⋅2H2O, occurs in crystals and in masses, soft enough to be scratched by the fingernail: used to make plaster of Paris, as an ornamental material, as a fertilizer, etc. Gypsum is that the name given to a mineral categorised as salt mineral, and its statement is salt dihydrate, CaSO4 ...
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