NOT KNOWN FACTUAL STATEMENTS ABOUT GYPSUM

Hydrothermal anhydrite in veins is often hydrated to gypsum by groundwater in in the vicinity of-surface exposures. It is commonly related to the minerals halite and sulfur. Gypsum is the commonest sulfate mineral.[17] Pure gypsum is white, but other substances found as impurities may possibly give a variety of colours to nearby deposits.Even thoug

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