Introduction of Superfine Powder Active Carbon Raymond Mill. Superfine Powder Active Carbon Raymond Mill is suitable for grinding of all kinds of materials whose Moh's hardness is below 9.3, such as calcium carbonate, dolomite, calcite, limestone, kaolin, marble, gypsum, quartz, feldspar, clay, talc, fluorite, clay, white mud, mica, refractory material, glass, total about 1000 kinds of ...