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
Volcanic Pipe
Mount Hypipamee Crater, Atherton Tableland, Queensland, Australia. This residue of a pipe is about 100 m (330 ft) across.
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
Volcanic pipe
…eruption of deep-origin volcanoes. They are a type of diatreme composed of a deep, narrow carrot-shaped cone of solidified magma usually composed of kimberlite or lamproite. These rocks reflect the composition of the volcanoes' deep magma sources rich in magnesium. They are the primary source of diamonds and…
Kimberlite from the United States
Mir mine