... 200, WS-325, WS400, WS-800 Wollastonite powder is widely used in ceramic Model numbers ... and become board shape, bacilliform or acicular, pure wollastonite appears to be white or ivory- ... company can manufacture many kinds of fine wollastonite powder, it is all manufactured by ... granularity equality, homogeneous, high purity, endless catenulate, acicular crystallize, high whiteness, low ferrous, minimum S, ...