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