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 Diamictite Uses. We have provided you with all information about Diamictite rock here. Diamictite is a sedimentary rock that consists of non-sorted to poorly sorted terrigenous sediment containing particles that range in size from clay to boulders, suspended in a matrix of mudstone or sandstone. Diamictite is available in brown, buff colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Diamictite is light to dark brown. Get to know more about Diamictite rock and characteristics of Diamictite rock in the next sections.