Magnesite: characteristics and application’s sectors

From Magnesium Carbonate to Magnesite


Magnesite is an anhydrous salt that represents the most common form of magnesium carbonate (MgCO3) and is found in nature in the form of a white mineral used in a lot of commercial sectors, like Ceramic, Zootechnical, Food and Agricultural sector.

Magnesite Ceramic – Magnesium Oxide Ceramic


The C.B.C. Group, purchases and sells ceramic magnesite and in this industry, magnesite it’s used in the following applications:

  • Ceramic glazes: in small percentages, magnesite is added to glaze compositions to obtain a matt and velvety-touch effect;
  • Ceramic and silk-screen printing compounds: used as a melting agent, magnesite in its purest composition is perfect for this application;
  • Engobes Save-rollers engobes: these compounds contain a high percentage of magnesite, protecting the rollers from deposits of enamel or of the same support and reducing the number of interruptions of the production plant due to cleaning or replacement of damaged rollers.

While magnesium oxide ceramic it’s regard as a special element with outstanding high temperature performance, mainly used in thermal engineering to realize heating elements, crucibles and refractories.

Other industrial uses: Granular magnesite and Micronized Magnesite


In the zootechnical sector, micronized magnesite it’s added to animal feed in order to achieve the correct amount of magnesium required in the animal’s diet and to neutralize the acidity that can result from the animal’s digestion and metabolic processes.

In the fertilizer industry, the same kind of magnesite it’s used as a nutritional supplement in organic and environmentally friendly fertilizers; it is considered an ideal magnesium corrector for direct distribution on the soil.

In the food sector, micronized magnesite it’s often used as a food additive with code E504 for its hygroscopic properties that avoid the agglomeration of table salt

Similar to the micronized magnesite, the granular magnesite is used in areas in which it is necessary to limit the dispersion of the material in the surrounding environment, avoiding waste in air and fluids.

Both granular and Micronized Magnesite, as needed, are particularly recommended for conservative restoration of buildings and monuments, for urban rehabilitation through the removal of contaminants such as oxidation, mold and graffiti from stones, bricks and concrete facades, and for paint removal.

Finally, magnesite is also widely used in the plastics, rubber and paint industries.