Know all about Tuff and Chert properties here. All properties of rocks are important as they define the type of rock and its application. Tuff belongs to Igneous Rocks while Chert belongs to Sedimentary Rocks.Texture of Tuff is Clastic, Pyroclastic whereas that of Chert is Banded, Rough. Tuff appears Dull, Vesicular and Foilated and Chert appears Glassy or Pearly. The luster of Tuff is vitreous to dull while that of Chert is waxy and dull. Tuff is available in brown, grey, yellow colors whereas Chert is available in black, brown, green, grey, red, white colors. The commercial uses of Tuff are creating artwork and that of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms.