gypsum formula

Is Gypsum A Gemstone?

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Is Gypsum A Gemstone? General Information Mineral information: Gypsum information at mindat.org Significant Gem Localities What is gypsum stone? Gypsum is a mineral found in crystal as well as masses called gypsum rock. It is a very soft mineral and it can form very pretty, and sometimes extremely large colored crystals. Massive gypsum rock forms

What Happens When A Gypsum Is Heated?

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What Happens When A Gypsum Is Heated? When gypsum is heated in air it loses water and converts first to calcium sulfate hemihydrate, (bassanite, often simply called “plaster”) and, if heated further, to anhydrous calcium sulfate (anhydrite). What happens when gypsum is heated to 100 gypsum? Gypsum is calcium sulphate dihydrate (CaSO4. 2H2O). When gypsum