Know all about Vogesite and Chalk properties here. All properties of rocks are important as they define the type of rock and its application. Vogesite belongs to Igneous Rocks while Chalk belongs to Sedimentary Rocks.Texture of Vogesite is Porphyritic whereas that of Chalk is Clastic or Non-Clastic. Vogesite appears Dull, Banded and Foilated and Chalk appears Soft. The luster of Vogesite is subvitreous to dull while that of Chalk is dull. Vogesite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors whereas Chalk is available in grey, white, yellow colors. The commercial uses of Vogesite are an oil and gas reservoir, as a feed additive for livestock, gemstone, metallurgical flux, production of lime, soil conditioner, source of magnesia (mgo) 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.