Talc Talc is a main component hydrous magnesium silicate molecule is Mg3 [Si4O10] (OH) 2. Talc belong to monoclinic. Crystal was fake six-party or diamond-shaped flakes, occasionally. Usually a dense block, leaf-shaped, radial, fibrous assemblies. Colorless or white, but with a small amount of impurities and showed light green, light yellow, light brown or even light red; cleavage plane was pearl luster. Hardness 1, the proportion of 2.7 to 2.8. Uses: used in rubber, plastics, paints, and other chemical industries as a reinforcing filler modified. Features: Increase the stability of the product shape, increasing tensile strength,