Know all about Chalk and Shoshonite properties here. All properties of rocks are important as they define the type of rock and its application. Chalk belongs to Sedimentary Rocks while Shoshonite belongs to Igneous Rocks.Texture of Chalk is Clastic or Non-Clastic whereas that of Shoshonite is Porphyritic. Chalk appears Soft and Shoshonite appears Dull. The luster of Chalk and Shoshonite is dull. Chalk is available in grey, white, yellow colors whereas Shoshonite is available in brown- black, dark brown 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 Shoshonite are cemetery markers, creating artwork.