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