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