Know all about Chalk and Soapstone properties here. All properties of rocks are important as they define the type of rock and its application. Chalk belongs to Sedimentary Rocks while Soapstone belongs to Metamorphic Rocks.Texture of Chalk is Clastic or Non-Clastic whereas that of Soapstone is Polished. Chalk appears Soft and Soapstone appears Dull, Banded and Foilated. The luster of Chalk is dull while that of Soapstone is greasy. Chalk is available in grey, white, yellow colors whereas Soapstone is available in black, black to grey, green, grey colors. The commercial uses of Chalk are alumina refineries, creating artwork, drawing on blackboards, gymnasts, athletes and mountain climbers use for grip, in aquifers, paper industry, production of lime, raw material for manufacture of quicklime, slaked lime, soil conditioner, whiting, whiting material in toothpaste, paint and paper and that of Soapstone are cemetery markers, creating artwork, gemstone, jewelry, manufacture of soap, solvents, dyes, plastics and fibres, production of lime, source of magnesia (mgo).