The article discusses the wollastonite, a calcium silicate of the pyroxenite mineral group that are hydrophilic and biologically safe. It states that wollastonite commonly builds from the reaction of silica and calcite at high temperature circumstances in the Earth's crust. It also mentions that the wollastonite global capacity is 1.02 metric ton industrial minerals in October 2009 while reserves are calculated more than 90 metric ton.