Know all about Essexite and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Essexite belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks.Texture of Essexite is Granular whereas that of Coal is Amorphous, Glassy. Essexite appears Banded and Coal appears Veined or Pebbled. The luster of Essexite is not available while that of Coal is dull to vitreous to submetallic. Essexite is available in dark grey to black colors whereas Coal is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Essexite are cemetery markers, commemorative tablets, jewelry, sea defence, tombstones and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.