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GYPSUM Gypsum is an evaporative sedimentary rock composed primarily of the mineral gypsum. Gypsum beds can be huge, although since it is somewhat water soluble it is unstable at the surface except in very arid regions. |
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GYPSUM Gypsum is an evaporative sedimentary rock composed primarily of the mineral gypsum. Gypsum beds can be huge, although since it is somewhat water soluble it is unstable at the surface except in very arid regions. |
