Know all about Lherzolite and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Lherzolite belongs to Igneous Rocks while Coal belongs to Sedimentary Rocks.Texture of Lherzolite is Grenue whereas that of Coal is Amorphous, Glassy. Lherzolite appears Glassy, Vesicular and Foilated and Coal appears Veined or Pebbled. The luster of Lherzolite is subvitreous to dull while that of Coal is dull to vitreous to submetallic. Lherzolite is available in black, dark greenish - grey, green, pink, purple colors whereas Coal is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Lherzolite are as armour rock for sea walls, source of magnesia (mgo), used in aquariums and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.