Gypsum Gypsum CaSO4.2H2OThese samples of gypsum are on display at the Smithsonian Museum of Natural History. The sample at left is from Chihuahua, Mexico and is about 2o cm wide. Gypsum is a sulfate mineral, containing calcium and sulfur. It is in fact the most common sulfate mineral. It is widely used as a material f

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Gypsum Association GYPSUMATION a free subscription Association Contact Information Online Courses GA Members GA 2017 Spring Committee Meetings & Hotel Registration Account Access Search YouTube About History of the Gypsum Association Gypsum Association Members Gypsum Association Staff Gypsum Builds the Economy Th

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Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate , with the chemical formula It is widely mined and is used as a fertilizer , and as the main constituent in many forms of plaster , blackboard chalk and wallboard . A massive fine-grained white or lightly tinted variety of gypsum, called alabaster ,