Know all about Granulite and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Granulite belongs to Metamorphic Rocks while Coal belongs to Sedimentary Rocks.Texture of Granulite is Granoblastic whereas that of Coal is Amorphous, Glassy. Granulite appears Veined or Pebbled and Coal appears Veined or Pebbled. The luster of Granulite is vitreous while that of Coal is dull to vitreous to submetallic. Granulite is available in black, brown colors whereas Coal is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.