Know all about Ganister and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Ganister and Coal belong to Sedimentary Rocks.Texture of Ganister is Clastic, Granular, Rough whereas that of Coal is Amorphous, Glassy. Ganister appears Rough and Coal appears Veined or Pebbled. The luster of Ganister is dull while that of Coal is dull to vitreous to submetallic. Ganister and Coal are available in beige, black, brown, colourless, cream, dark brown, green, grey, light green, light to dark grey, pink, red, white, yellow colors. The commercial uses of Ganister are an oil and gas reservoir, in aquifers, petroleum reservoirs, soil conditioner, source of magnesia (mgo), tombstones and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.