Definition
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Discoverer
Etymology
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Granodiorite is a coarse-grained intrusive igneous rock containing quartz and plagioclase, and which has composition in between granite and diorite
Durable Rock, Medium Hardness Rock
Coarse Grained Rock, Medium Grained Rock, Opaque Rock
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