Know all about Flint and Siltstone properties here. All properties of rocks are important as they define the type of rock and its application. Flint and Siltstone belong to Sedimentary Rocks.Texture of Flint is Banded, Rough whereas that of Siltstone is Clastic. Flint appears Glassy or Pearly and Siltstone appears Rough. The luster of Flint is vitreous while that of Siltstone is dull. Flint is available in black, brown, green, grey, red, white colors whereas Siltstone is available in brown, red, reddish brown 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 Siltstone are raw material for the manufacture of mortar, soil conditioner.