Know all about Ganister and Chalk properties here. All properties of rocks are important as they define the type of rock and its application. Ganister and Chalk belong to Sedimentary Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Chalk is Clastic or Non-Clastic. Ganister appears Rough and Chalk appears Soft. The luster of Ganister and Chalk is dull. Ganister and Chalk are available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones 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.