Know all about Flint and Argillite properties here. All properties of rocks are important as they define the type of rock and its application. Flint and Argillite belong to Sedimentary Rocks.Texture of Flint is Banded, Rough whereas that of Argillite is Clastic, Polished. Flint appears Glassy or Pearly and Argillite appears Rough and Dull. The luster of Flint is vitreous while that of Argillite is waxy and dull. Flint is available in black, brown, green, grey, red, white colors whereas Argillite is available in dark grey to black, pink, red, white 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 Argillite are fire resistant, used to manufracture paperweights and bookends.