description Magnesite Overview
Magnesite is a mineral composed primarily of magnesium carbonate, with the chemical formula MgCO3. It commonly occurs in white, grey, or pale brown masses and has a dull to glassy appearance, although some material is cut and polished for ornamental objects and jewellery. Magnesite is also frequently dyed blue and sold as an imitation turquoise, so colour alone is not a reliable way to identify it. It forms in several geological environments, including altered ultramafic rocks and sedimentary deposits.
help Magnesite FAQ
What is magnesite made of?
Magnesite is a mineral composed primarily of magnesium carbonate. Its chemical formula is MgCO3.
What colors can magnesite be?
Magnesite commonly occurs in white, grey, or pale brown masses. Its surface can range from dull to glassy, depending on the specimen.
Is magnesite used in jewellery?
Some magnesite is cut and polished for ornamental objects and jewellery. Much natural material remains in mass form rather than being faceted like a transparent gemstone.
How can magnesite be identified chemically?
The key chemical identifier is magnesium carbonate, written as MgCO3. Physical specimens are often white, grey, or pale brown and may have a dull or glassy appearance.
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