Know all about Coal and Basalt properties here. All properties of rocks are important as they define the type of rock and its application. Coal belongs to Sedimentary Rocks while Basalt belongs to Igneous Rocks.Texture of Coal is Amorphous, Glassy whereas that of Basalt is Glassy, Massive, Porphyritic, Scoriaceous, Vesicular. Coal appears Veined or Pebbled and Basalt appears Dull and Soft. The luster of Coal is dull to vitreous to submetallic while that of Basalt is not available. Coal and Basalt are available in black, brown, dark brown, grey, light to dark grey 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 Basalt are an oil and gas reservoir, commemorative tablets, creating artwork, used in aquariums.