Know all about Coal and Suevite properties here. All properties of rocks are important as they define the type of rock and its application. Coal belongs to Sedimentary Rocks while Suevite belongs to Metamorphic Rocks.Texture of Coal is Amorphous, Glassy whereas that of Suevite is Earthy. Coal appears Veined or Pebbled and Suevite appears Banded. The luster of Coal is dull to vitreous to submetallic while that of Suevite is earthy. Coal is available in black, brown, dark brown, grey, light to dark grey colors whereas Suevite is available in black, brown, colourless, green, grey, pink 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 Suevite are as a feed additive for livestock, gemstone, metallurgical flux, source of magnesia (mgo).