World's oldest diamonds discovered 澳洲發現世界最古老的鑽石

The 4.25 billion years old diamonds were discovered encased in a crystal in Western Australia by scientists lead by Simon Wilde, a geologist at Curtin University of Technology in Perth, Australia.

The tiny diamonds were found trapped in zircon, a rare and exceptionally stable mineral that forms under temperatures between 1,112 and 1,652 Fahrenheit (600 and 900 degrees Celsius). (National Geographic)