Know all about Tuff and Novaculite properties here. All properties of rocks are important as they define the type of rock and its application. Tuff belongs to Igneous Rocks while Novaculite belongs to Sedimentary Rocks.Texture of Tuff is Clastic, Pyroclastic whereas that of Novaculite is Banded, Glassy, Rough, Vitreous. Tuff appears Dull, Vesicular and Foilated and Novaculite appears Glassy or Pearly. The luster of Tuff is vitreous to dull while that of Novaculite is waxy and dull. Tuff is available in brown, grey, yellow colors whereas Novaculite is available in black, brown, green, grey, red, white colors. The commercial uses of Tuff are creating artwork and that of Novaculite are cemetery markers, gemstone, in aquifers, in fire-starting tools, jewelry, manufacture of tools, pebbles are used in ball mills to grind in ceramics industry, to determine the gold content of jewelry.