Kimberlite
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Kimberlite is an igneous rock and a rare variant of peridotite. It is most commonly known as the main host matrix for diamonds. It is named after the town of Kimberley in South Africa, where the disco
Kimberlite from the United States
Mir mine
Volcanic pipe
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Volcanic pipes or volcanic conduits are subterranean geological structures formed by the violent, supersonic eruption of deep-origin volcanoes. They are a type of diatreme composed of a deep, narrow c
Kimberlite
…applied to olivine lamproites as Kimberlite II, however this has been in error. Kimberlite occurs in the Earth's crust in vertical structures known as kimberlite pipes, as well as igneous dykes and can also occur as horizontal sills. Kimberlite pipes are the most important source of mined diamonds today. The consensus…
Volcanic Pipe
Mount Hypipamee Crater, Atherton Tableland, Queensland, Australia. This residue of a pipe is about 100 m (330 ft) across.