Know all about Carbonatite and Chalk properties here. All properties of rocks are important as they define the type of rock and its application. Carbonatite belongs to Igneous Rocks while Chalk belongs to Sedimentary Rocks.Texture of Carbonatite is Granular, Poikiloblastic whereas that of Chalk is Clastic or Non-Clastic. Carbonatite appears Dull, Banded and Foilated and Chalk appears Soft. The luster of Carbonatite is subvitreous to dull while that of Chalk is dull. Carbonatite is available in black, brown, colourless, green, grey, pink, white colors whereas Chalk is available in grey, white, yellow colors. The commercial uses of Carbonatite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux 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.