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 Dolomite Uses. We have provided you with all information about Dolomite rock here. Dolomite is a sedimentary rock containing more than 50 percent of the mineral dolomite by weight. Dolomite is available in black, brown, colourless, green, grey, pink, white colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Dolomite is white. Get to know more about Dolomite rock and characteristics of Dolomite rock in the next sections.