Rocks are naturally occurring solids which are composed of minerals & have been used by humans since ages. From Stone Age, rocks are used for various purposes. Also, the metals and minerals found in rock play an important role in our life. Get to know all the Oil shale Uses. We have provided you with all information about Oil shale rock here. Oil Shale is a fine-grained sedimentary rock from which oil is extracted. Oil shale is available in black, brown, buff, green, grey, red, yellow colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Oil shale is white. Get to know more about Oil shale rock and characteristics of Oil shale rock in the next sections.