Know all about Coal and Migmatite properties here. All properties of rocks are important as they define the type of rock and its application. Coal belongs to Sedimentary Rocks while Migmatite belongs to Metamorphic Rocks.Texture of Coal is Amorphous, Glassy whereas that of Migmatite is Foliated. Coal appears Veined or Pebbled and Migmatite appears Dull, Banded and Foilated. The luster of Coal is dull to vitreous to submetallic while that of Migmatite is dull to pearly to subvitreous. Coal is available in black, brown, dark brown, grey, light to dark grey colors whereas Migmatite is available in black, bluish - grey, brown, brown- black, dark greenish - grey, dark grey to black colors. The commercial uses of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry and that of Migmatite are cemetery markers, jewelry, tombstones, used to manufracture paperweights and bookends.