Know all about Chalk and Amphibolite properties here. All properties of rocks are important as they define the type of rock and its application. Chalk belongs to Sedimentary Rocks while Amphibolite belongs to Metamorphic Rocks.Texture of Chalk is Clastic or Non-Clastic whereas that of Amphibolite is Banded, Foliated, Massive. Chalk appears Soft and Amphibolite appears Foliated. The luster of Chalk is dull while that of Amphibolite is vitreous to dull. Chalk is available in grey, white, yellow colors whereas Amphibolite is available in black, brown, green, grey 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 Amphibolite are cemetery markers, commemorative tablets, creating artwork.