Know all about Lignite and Granulite properties here. All properties of rocks are important as they define the type of rock and its application. Lignite belongs to Sedimentary Rocks while Granulite belongs to Metamorphic Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Granulite is Granoblastic. Lignite appears Veined or Pebbled and Granulite appears Veined or Pebbled. The luster of Lignite is dull to vitreous to submetallic while that of Granulite is vitreous. Lignite and Granulite are available in black, brown, dark brown, grey, light to dark grey colors. The commercial uses of Lignite are electricity generation and that of Granulite are curling, gemstone, laboratory bench tops, soil conditioner, tombstones.