Know all about Flint and Chalk properties here. All properties of rocks are important as they define the type of rock and its application. Flint and Chalk belong to Sedimentary Rocks.Texture of Flint is Banded, Rough whereas that of Chalk is Clastic or Non-Clastic. Flint appears Glassy or Pearly and Chalk appears Soft. The luster of Flint is vitreous while that of Chalk is dull. Flint is available in black, brown, green, grey, red, white colors whereas Chalk is available in grey, white, yellow colors. The commercial uses of Flint are creating artwork, gemstone, in fire-starting tools, manufacture of tools, metallurgical flux, jewelry, to ignite fire, used in flintlock firearms 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.