Know all about Lignite and Soapstone properties here. All properties of rocks are important as they define the type of rock and its application. Lignite belongs to Sedimentary Rocks while Soapstone belongs to Metamorphic Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Soapstone is Polished. Lignite appears Veined or Pebbled and Soapstone appears Dull, Banded and Foilated. The luster of Lignite is dull to vitreous to submetallic while that of Soapstone is greasy. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas Soapstone is available in black, black to grey, green, grey colors. The commercial uses of Lignite are electricity generation and that of Soapstone are cemetery markers, creating artwork, gemstone, jewelry, manufacture of soap, solvents, dyes, plastics and fibres, production of lime, source of magnesia (mgo).