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