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