Know all about Oil shale and Charnockite properties here. All properties of rocks are important as they define the type of rock and its application. Oil shale belongs to Sedimentary Rocks while Charnockite belongs to Igneous Rocks.Texture of Oil shale is Splintery whereas that of Charnockite is Granular. Oil shale appears Muddy and Charnockite appears Veined or Pebbled. The luster of Oil shale is dull while that of Charnockite is not available. Oil shale is available in black, brown, buff, green, grey, red, yellow colors whereas Charnockite is available in black, grey, orange, pink, white colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Charnockite are curling, gemstone, laboratory bench tops, tombstones.