Know all about Serpentinite and Coal properties here. All properties of rocks are important as they define the type of rock and its application. Serpentinite belongs to Metamorphic Rocks while Coal belongs to Sedimentary Rocks.Texture of Serpentinite is Earthy whereas that of Coal is Amorphous, Glassy. Serpentinite appears Rough and Dull and Coal appears Veined or Pebbled. The luster of Serpentinite is waxy and dull while that of Coal is dull to vitreous to submetallic. Serpentinite is available in black, brown, colourless, green, grey, white colors whereas Coal is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Serpentinite are commemorative tablets, creating artwork and that of Coal are alumina refineries, electricity generation, liquid fuel, manufacture of soap, solvents, dyes, plastics and fibres, paper industry.