Know all about Lignite and Mudstone properties here. All properties of rocks are important as they define the type of rock and its application. Lignite and Mudstone belong to Sedimentary Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Mudstone is Clastic. Lignite appears Veined or Pebbled and Mudstone appears Rough and Dull. The luster of Lignite is dull to vitreous to submetallic while that of Mudstone is dull. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas Mudstone is available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Lignite are electricity generation and that of Mudstone are creating artwork, pottery.