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Wollastonite is chemically a Calcium Meta Silicate (CaSiO3), it is a naturally occurring white & acicular (needle shaped) mineral, with mohs hardness of 4.5. In addition to Wollastonite’s unique morphology, it is alkaline, inert, has low loss on ignition, low water solubility, low co-efficient of linear thermal expansion and a melting point of 15400c. It also improves tear strength, dielectric properties and retains mechanical properties at elevated temperatures.

Wolkems strength in wollastonite
Wolkem’s strength in Wollastonite comes from having India’s largest Wollastonite reserves which are true repositories of the purest and most fibrous Wollastonite deposits of the world. Wolkem has more than 30 years experience in mining and processing of Wollastonite and today Wolkem is the world’s largest miner and producer of wollastonite.

Wolkem is constantly innovating changes in the wollastonite business through product leadership. It after all has been the first company in India to produce surface modified wollastonite and a product of D97=8micron, our products are sold under the brand names Kemolit, Wolkron, Fillex.

Processing technology
Although the deposit has high purity Wollastonite, Wolkem uses a unique beneficiation technique to beneficiate the Wollastonite rock, in order to ensure consistent purity and brightness and make tailor made grades.

Wolkem’s proprietary grinding technology enables it to achieve a highly acicular Wollastonite and its automated process control system, which is duly supported with the latest instrumentation, ensures consistency in quality & product delivery.

A dedicated research team is constantly innovating new ways to optimize production costs for new product launches.


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