Know all about Shale and Chalk properties here. All properties of rocks are important as they define the type of rock and its application. Shale and Chalk belong to Sedimentary Rocks.Texture of Shale is Clastic, Splintery whereas that of Chalk is Clastic or Non-Clastic. Shale appears Muddy and Chalk appears Soft. The luster of Shale and Chalk is dull. Shale is available in black, brown, buff, green, grey, red, yellow colors whereas Chalk is available in grey, white, yellow colors. The commercial uses of Shale are creating artwork, pottery and that 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.