Know all about Chert and Diorite properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Diorite belongs to Igneous Rocks.Texture of Chert is Banded, Rough whereas that of Diorite is Phaneritic. Chert appears Glassy or Pearly and Diorite appears Shiny. The luster of Chert is waxy and dull while that of Diorite is shiny. Chert is available in black, brown, green, grey, red, white colors whereas Diorite is available in black, brown, light to dark grey, white 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 Diorite are creating artwork, curling.