Know all about Chalk and Felsite properties here. All properties of rocks are important as they define the type of rock and its application. Chalk belongs to Sedimentary Rocks while Felsite belongs to Igneous Rocks.Texture of Chalk is Clastic or Non-Clastic whereas that of Felsite is Arborescent Patterned, Vitreous. Chalk appears Soft and Felsite appears Layered, Banded, Veined and Shiny. The luster of Chalk is dull while that of Felsite is vitreous. Chalk is available in grey, white, yellow colors whereas Felsite is available in black, blue, brown, green, orange, red, tan, yellow 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 Felsite are mirror, jewelry.