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There are two basic types of mineral.

1. Macro -- It is the amount mineral needed by the body which is larger than 100 milligrams. Examples: Calcium, phosphorus and magnesium

2. Trace-- It is the amount needed by the body in small amounts

Example: Iron

3.Gypsum--a common white or colorless mineral (hydrated calcium sulphate) used to make cements and plasters (especially plaster of Paris)

Gypsum is a very soft mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O.

A common mineral of evaporates in inland salt playas. Calcium sulphate

the raw material (minerals alabaster, satin spar, selenite) used for gypsum plasters, wallboard/drywall; gypsum plaster, unlike cement, expands on setting, does not crack unless there are faults in the backing; must never be mixed with Portland cement.

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14y ago

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