Know all about Eclogite and Chalk properties here. All properties of rocks are important as they define the type of rock and its application. Eclogite belongs to Metamorphic Rocks while Chalk belongs to Sedimentary Rocks.Texture of Eclogite is Earthy whereas that of Chalk is Clastic or Non-Clastic. Eclogite appears Dull, Banded and Foilated and Chalk appears Soft. The luster of Eclogite is subvitreous to dull while that of Chalk is dull. Eclogite is available in black, brown, colourless, green, grey, pink, white colors whereas Chalk is available in grey, white, yellow colors. The commercial uses of Eclogite are creating artwork, gemstone 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.