Carbon.
Diamonds are erupted to the surface of the earth by volcanic pipes.
Via rising molten magma or by mining.
Diamonds erupt to the surface through volcanic pipes called kimberlite pipes. These pipes are formed deep in the Earth's mantle and bring diamonds closer to the surface during volcanic eruptions. Once on the surface, the diamonds can be found in countries like South Africa, Botswana, Russia, and Canada.
Raw diamonds are found in the earth, where they are blasted to the surface by volcanic pipes.
Diamonds are formed deep within the earth's mantle, under enormous pressure and extreme, high heat. Then, volcanic pipes erupt the diamonds to the earth's surface.
Diamonds are erupted to the earth's surface through volcanic pipes. These pipes can be mined.
No volcano produces diamonds. Diamonds are erupted to the surface of the earth through volcanic pipes, which look like upside-down volcanoes. These pipes erupt indicator minerals, some of which include diamonds.
People in many African nations mine for diamonds around the volcanic pipes that erupted the diamonds to the earth's surface.
The geology around the Grater of Diamonds was covered by the surface effects of a volcanic pipe which deposited diamonds and indicator minerals there.
All diamonds are erupted to the surface of the earth from deep within the mantle, where diamonds are formed. Diamonds are mined on every continent on earth except Europe and Antarctica.
Diamonds are found in kimberlite and lamproite rocks, which are formed deep within the Earth's mantle and brought to the surface through volcanic activity. These rocks can sometimes contain diamonds as inclusions or as separate crystals.
In rare cases, diamonds have been found in creeks. The rain water will push them to the surface. Usually the diamonds are mined from deep in the earth.