Know all about Chalk and Migmatite properties here. All properties of rocks are important as they define the type of rock and its application. Chalk belongs to Sedimentary Rocks while Migmatite belongs to Metamorphic Rocks.Texture of Chalk is Clastic or Non-Clastic whereas that of Migmatite is Foliated. Chalk appears Soft and Migmatite appears Dull, Banded and Foilated. The luster of Chalk is dull while that of Migmatite is dull to pearly to subvitreous. Chalk is available in grey, white, yellow colors whereas Migmatite is available in black, bluish - grey, brown, brown- black, dark greenish - grey, dark grey to black 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 Migmatite are cemetery markers, jewelry, tombstones, used to manufracture paperweights and bookends.