Know all about Chert and Skarn properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Skarn belongs to Metamorphic Rocks.Texture of Chert is Banded, Rough whereas that of Skarn is Earthy, Mud-rich, Rough. Chert appears Glassy or Pearly and Skarn appears Dull. The luster of Chert and Skarn is waxy and dull. Chert is available in black, brown, green, grey, red, white colors whereas Skarn is available in black, brown, colourless, green, 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 Skarn are creating artwork, gemstone, jewelry, metallurgical flux, source of magnesia (mgo).