Know all about Coal and Breccia properties here. All properties of rocks are important as they define the type of rock and its application. Coal and Breccia belong to Sedimentary Rocks.Texture of Coal is Amorphous, Glassy whereas that of Breccia is Brecciated, Clastic. Coal appears Veined or Pebbled and Breccia appears Layered, Banded, Veined and Shiny. The luster of Coal is dull to vitreous to submetallic while that of Breccia is dull to pearly. Coal is available in black, brown, dark brown, grey, light to dark grey colors whereas Breccia is available in beige, black, blue, brown, buff, green, grey, orange, pink, purple, red, rust, 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 Breccia are creating artwork, gemstone, jewelry.