Know all about Mudstone and Chert properties here. All properties of rocks are important as they define the type of rock and its application. Mudstone and Chert belong to Sedimentary Rocks.Texture of Mudstone is Clastic whereas that of Chert is Banded, Rough. Mudstone appears Rough and Dull and Chert appears Glassy or Pearly. The luster of Mudstone is dull while that of Chert is waxy and dull. Mudstone and Chert are available in black, blue, brown, green, grey, orange, red, white, yellow colors. The commercial uses of Mudstone are creating artwork, pottery and that of Chert are creating artwork, gemstone, in fire-starting tools, jewelry, to ignite fire, used in flintlock firearms.