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