Know all about Granophyre and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Granophyre belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks.Texture of Granophyre is Granophyric whereas that of Coal is Amorphous, Glassy. Granophyre appears Veined or Pebbled and Coal appears Veined or Pebbled. The luster of Granophyre is dull to grainy with sporadic parts pearly and vitreous while that of Coal is dull to vitreous to submetallic. Granophyre 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 Granophyre are curling, gemstone, laboratory bench tops, tombstones and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.