Know all about Ignimbrite and Chalk properties here. All properties of rocks are important as they define the type of rock and its application. Ignimbrite belongs to Igneous Rocks while Chalk belongs to Sedimentary Rocks.Texture of Ignimbrite is Aphanitic whereas that of Chalk is Clastic or Non-Clastic. Ignimbrite appears Dull, Vesicular and Foilated and Chalk appears Soft. The luster of Ignimbrite is vitreous to dull while that of Chalk is dull. Ignimbrite is available in beige, black, brown, grey, pink, white colors whereas Chalk is available in grey, white, yellow colors. The commercial uses of Ignimbrite are cemetery markers, commemorative tablets, creating artwork 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.