Know all about Borolanite and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Borolanite belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks.Texture of Borolanite is Granular whereas that of Coal is Amorphous, Glassy. Borolanite appears Banded and Foilated and Coal appears Veined or Pebbled. The luster of Borolanite is greasy to dull while that of Coal is dull to vitreous to submetallic. Borolanite is available in brown, buff, cream, green, grey, pink, white colors whereas Coal is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Borolanite are cemetery markers and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.