• Wolkem India Limited

Wollastanite

Wollastanite 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 Wollastanite’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. Although the deposit has high purity Wollastanite, Wolkem uses a unique beneficiation technique to beneficiate the Wollastanite 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.