Know all about Chalk and Suevite properties here. All properties of rocks are important as they define the type of rock and its application. Chalk belongs to Sedimentary Rocks while Suevite belongs to Metamorphic Rocks.Texture of Chalk is Clastic or Non-Clastic whereas that of Suevite is Earthy. Chalk appears Soft and Suevite appears Banded. The luster of Chalk is dull while that of Suevite is earthy. Chalk is available in grey, white, yellow colors whereas Suevite is available in black, brown, colourless, green, grey, pink 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 Suevite are as a feed additive for livestock, gemstone, metallurgical flux, source of magnesia (mgo).