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 Kimberlite Uses. We have provided you with all information about Kimberlite rock here. Kimberlite is a rare, blue-tinged, coarse-grained intrusive igneous rock, which sometimes contains diamonds and is mostly found in South Africa and Siberia.. Kimberlite is available in black, bluish - grey, brown, dark greenish - grey, green, grey colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Kimberlite is white. Get to know more about Kimberlite rock and characteristics of Kimberlite rock in the next sections.