Know all about Granite and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Granite belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks.Texture of Granite is Granular, Phaneritic whereas that of Coal is Amorphous, Glassy. Granite appears Veined or Pebbled and Coal appears Veined or Pebbled. The luster of Granite is dull to grainy with sporadic parts pearly and vitreous while that of Coal is dull to vitreous to submetallic. Granite is available in black, grey, orange, pink, white colors whereas Coal is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Granite are curling, gemstone, laboratory bench tops, tombstones, used in aquariums and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.