Know all about Dunite and Chert properties here. All properties of rocks are important as they define the type of rock and its application. Dunite belongs to Igneous Rocks while Chert belongs to Sedimentary Rocks.Texture of Dunite is Phaneritic whereas that of Chert is Banded, Rough. Dunite appears Rough and Shiny and Chert appears Glassy or Pearly. The luster of Dunite is shiny while that of Chert is waxy and dull. Dunite is available in dark greenish - grey colors whereas Chert is available in black, brown, green, grey, red, white colors. The commercial uses of Dunite are creating artwork, gemstone, jewelry, source of chromite, platinum, nickel and garnet, source of diamonds and that of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms.