illite powder mill manufacturer Industry. Industry stone milling machine micro powder grinder mill is suitable for grinding of all kinds of materials whose Moh's hardness is below 9.3, such as calcium carbonate, barite, dolomite, calcite, limestone, kaolin, bentonite, marble, gypsum, quartz, feldspar, clay, talc, fluorite, clay, white mud, mica, refractory material, glass, total about 1000 ...