Know all about Marl and Flint properties here. All properties of rocks are important as they define the type of rock and its application. Marl and Flint belong to Sedimentary Rocks.Texture of Marl is Earthy whereas that of Flint is Banded, Rough. Marl appears Rough and Dull and Flint appears Glassy or Pearly. The luster of Marl is dull while that of Flint is vitreous. Marl is available in beige, brown, green, grey, white colors whereas Flint is available in black, brown, green, grey, red, white colors. The commercial uses of Marl are creating artwork, soil conditioner 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.