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 Wehrlite Uses. We have provided you with all information about Wehrlite rock here. Wehrlite is an ultramafic and ultrabasic rock that is a mixture of olivine and clinopyroxene. It is a subdivision of the peridotites. Wehrlite is available in dark greenish - grey, green colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Wehrlite is white. Get to know more about Wehrlite rock and characteristics of Wehrlite rock in the next sections.