Know all about Oil shale and Shale properties here. All properties of rocks are important as they define the type of rock and its application. Oil shale and Shale belong to Sedimentary Rocks.Texture of Oil shale is Splintery whereas that of Shale is Clastic, Splintery. Oil shale appears Muddy and Shale appears Muddy. The luster of Oil shale and Shale is dull. Oil shale and Shale are available in black, brown, buff, green, grey, red, yellow colors. The commercial uses of Oil shale are an oil and gas reservoir and that of Shale are creating artwork, pottery.