Know all about Chalk and Novaculite properties here. All properties of rocks are important as they define the type of rock and its application. Chalk and Novaculite belong to Sedimentary Rocks.Texture of Chalk is Clastic or Non-Clastic whereas that of Novaculite is Banded, Glassy, Rough, Vitreous. Chalk appears Soft and Novaculite appears Glassy or Pearly. The luster of Chalk is dull while that of Novaculite is waxy and dull. Chalk is available in grey, white, yellow colors whereas Novaculite is available in black, brown, green, grey, red, white 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 Novaculite are cemetery markers, gemstone, in aquifers, in fire-starting tools, jewelry, manufacture of tools, pebbles are used in ball mills to grind in ceramics industry, to determine the gold content of jewelry.