Know all about Coal and Wackestone properties here. All properties of rocks are important as they define the type of rock and its application. Coal and Wackestone belong to Sedimentary Rocks.Texture of Coal is Amorphous, Glassy whereas that of Wackestone is Clastic. Coal appears Veined or Pebbled and Wackestone appears Rough and Dull. The luster of Coal is dull to vitreous to submetallic while that of Wackestone is dull. Coal is available in black, brown, dark brown, grey, light to dark grey colors whereas Wackestone is available in black, blue, brown, green, grey, orange, red, white, yellow 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 Wackestone are cemetery markers, pottery.