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• n  a rare type of peridotite that sometimes contains diamonds; found in South Africa and Siberia

• Such conditions deep within the earth produce diamonds, which are brought to the surface in eruptions of molten magma through kimberlite, or volcanic, pipes.
• The ore, known as kimberlite, is dug or blasted from mines; the deposits are then crushed and boiled in grease and water to separate the diamonds.
• The lava was kimberlite, named after Kimberley, South Africa, and as it disintegrated, it released a few diamonds.

News & Articles

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• Pangolin Diamonds Discovers Second Kimberlite in Botswana, Adds Leading Diamond Geologist Manfred Marx to Exploration ...
  -- New kimberlite found at Tsabong North Project has +20 hectare aeromagnetic anomaly -- Manfred Marx led field team that discovered De Beers' Orapa Diamond Mine, with $1B of annual sales --Volcanic micaceous sandy tuff present with inclusions of pyrope garnets, chromites, autoliths, and mantle xenolith fragments
  June 18, 2013 - Marketwire