Know all about Lignite and Chert properties here. All properties of rocks are important as they define the type of rock and its application. Lignite and Chert belong to Sedimentary Rocks.Texture of Lignite is Amorphous, Glassy whereas that of Chert is Banded, Rough. Lignite appears Veined or Pebbled and Chert appears Glassy or Pearly. The luster of Lignite is dull to vitreous to submetallic while that of Chert is waxy and dull. Lignite is available in black, brown, dark brown, grey, light to dark grey colors whereas Chert is available in black, brown, green, grey, red, white colors. The commercial uses of Lignite are electricity generation and that of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms.