Gypsum: Difference between revisions
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JeffEvarts (talk | contribs) (Created page with "{{Mineral|name=Gypsum|freq=uncommon|hardness=2|density=2.3|chemf=CaSO4.2H2O}} Gypsum is a mineral composed primarily of calcium sulfate and structural water. If heated...") |
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Latest revision as of 04:59, 17 December 2019
Frequency | uncommon |
---|---|
Hardness | 2 |
Density | 2.3 |
Chemical Formula | CaSO4.2 H2O |
Gypsum is a mineral composed primarily of calcium sulfate and structural water. If heated to 300F to drive off the structural water, it becomes annhydrite, which is composed almost exclusively of calcium sulfate. Annyhdrite is used as a setting agent in many lime-based materials.