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Chemical Composition:
CaSO4-2H2O
Group: -
System: Monoclinic
Family: Sulphates
Hardness: 2
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- Clear, tabular crystals
- Transparent crystals
- Light
- Transparent
- Soluble in hydrochloric acid and hot water
- Other colours: white, grey, yellowish
- Fuses fairly easily
- Found in: Canada, Chile, France, Italy, Mexico, USA,
former USSR
- Uses: making of plaster of Paris, a fertilizer, some
varieties are used in interior decorating and for
sculpture
- Very common
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