Know all about Chert and Charnockite properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Charnockite belongs to Igneous Rocks.Texture of Chert is Banded, Rough whereas that of Charnockite is Granular. Chert appears Glassy or Pearly and Charnockite appears Veined or Pebbled. The luster of Chert is waxy and dull while that of Charnockite is not available. Chert is available in black, brown, green, grey, red, white colors whereas Charnockite is available in black, grey, orange, pink, 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 Charnockite are curling, gemstone, laboratory bench tops, tombstones.