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