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Sibelco dolomite delivers benefits across a wide range of applications including glass, ceramics, steel, construction and agriculture.



Dolomite is the name given to limestone containing a certain proportion of magnesium. It is also referred to as dolomitic limestone (chemical formula CaMg (CO3)2).

Sibelco glass-grade dolomite is used in float glass production to improve resistance to natural or chemical attack or weathering.

The versatility of dolomite makes it suitable for a range of other applications including:

  • Ceramics: as a source of magnesia in glazes  
  • Steel making: as a fluxing and refractory material
  • Construction: as an additive in cement
  • Agriculture: as a fertiliser, soil conditioner and food supplement


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