February 13, 2014 | Geology.com
Peridotite is a host rock of chromite, a source rock of diamonds, a potential sink for atmospheric carbon dioxide and the rock that makes up much of Earth's mantle. Did you realize it was so important?
Related: Misconception: Diamonds Don't Form From Coal
Botswana Trading Diamonds for Coal
March 5, 2013 | Mining Weekly
Botswana has been one of the world's leaders in the production of gem-quality diamonds but production levels are not sustainable. To diversify their mineral industry the plan is to focus on coal.
Related: What countries produce gem-quality diamonds?
Fancy Vivid Pink Diamond Sells for $83 Million
November 19, 2013 | Bloomberg
A fancy vivid pink diamond weighing 59.60 carats was sold last week in Geneva for $83 million. That is the highest price ever paid for any gemstone at auction.
Related: How do diamonds form?