Know all about Arkose and Lignite properties here. All properties of rocks are important as they define the type of rock and its application. Arkose and Lignite belong to Sedimentary Rocks.Texture of Arkose is Clastic whereas that of Lignite is Amorphous, Glassy. Arkose appears Rough and Dull and Lignite appears Veined or Pebbled. The luster of Arkose is dull while that of Lignite is dull to vitreous to submetallic. Arkose is available in reddish brown colors whereas Lignite is available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Arkose are in aquifers, soil conditioner, source of magnesia (mgo), tombstones and that of Lignite are electricity generation.