Welcome to the world of Nordkalk Wollastonite

Nordkalk has launched a new generation of wollastonite products 

Nordkalk has launched a new generation of High Aspect Ratio wollastonite fillers. The name of the new product family is Nordkalk Harwoll wollastonite. Harwoll products are disigned for termoplactic and thermoset applications.  

Wollastonite is a calcium metasilicate (CaSiO₃) with the theoretical composition of 48,3% CaO and 51,7% SiO₂. It is the only naturally occurring white acicular mineral. It has been named after William Hyde Wollaston, the English chemist and mineralogist, who discovered the mineral in the late 1700s.

Wollastonite is mainly used in the production of ceramics, plastics, elastomers, coatings, metallurgy and abrasive materials.

Nordkalk is the first and only one European Wollastonite producer. All Nordkalk high quality Wollastonite grades are mined and processed in Lappeenranta, Finland.

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• The physical properties of wollastonite
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