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Magnesite Magnesium Carbonate

Magnesium is the eighth most abundant element in the Earth's crust and can be found in 60 different minerals.

The Present Scenario

Notable Occurrences are Austria; Bahia, Brazil; Korea; China; California, USA and many European localities.

Magnesite does not ordinarily form good crystals, but can make up a substantial portion of some rock types. It forms commonly from the alteration of magnesium-rich rocks during low grade metamorphism while they are in contact with carbonate-rich solutions. Magnesite has the same crystal structure of calcite, hence its inclusion into the calcite mineral group. Many of the properties of magnesite are either identical or similar to those of calcite. However, the magnesium ion does not allow the carbonate ion (CO3) to interact as easily with cold acids, as the calcium ion does in calcite. This provides the best means of distinguishing magnesite from calcite. However, dolomite(MgCa(CO3)2) can be almost indistinguishable from magnesite.

Physical Characteristics


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