Know all about Chert and Phyllite properties here. All properties of rocks are important as they define the type of rock and its application. Chert belongs to Sedimentary Rocks while Phyllite belongs to Metamorphic Rocks.Texture of Chert is Banded, Rough whereas that of Phyllite is Phyllitic Sheen, Slaty. Chert appears Glassy or Pearly and Phyllite appears Crinkled or Wavy. The luster of Chert is waxy and dull while that of Phyllite is phyllitic. Chert is available in black, brown, green, grey, red, white colors whereas Phyllite is available in black to grey, light greenish grey 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 Phyllite are cemetery markers, commemorative tablets, creating artwork, writing slates.