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Kimberlite is a rare, blue-tinged, coarse-grained intrusive igneous rock, which sometimes contains diamonds and is mostly found in South Africa and Siberia.
From Kimberley + -ite, from the name of the South African town of Kimberley where the rock was first found.
Coarse Grained Rock, Fine Grained Rock, Opaque Rock
Wehrlite is an ultramafic and ultrabasic rock that is a mixture of olivine and clinopyroxene. It is a subdivision of the peridotites
From the name of a professor, Alois Wehrle
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Opaque Rock