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A new way to tell ages of the stones!

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                                              Reliable ages for diamond fluids                                                Encapsulated fluids, from which the diamond formed   Diamonds are sometimes described as messengers from the deep earth; scientists study them closely for insights into the otherwise inaccessible depths from which they come. But the messages are often hard to read. Now, a team has come up with a way to solve two longstanding puzzles: the ages of individual fluid-bearing diamonds, and the chemistry of their parent material. The research has allowed them to sketch out geologic events going back more than a billion years—a potential breakthrough not only in the study of diamonds, but of planetary evolution.   Gem-quality ...