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Billion-Plus diamonds

Ugly Diamonds Hold a Billion-Plus Years of Earth History

Cloudy, yellowish “fibrous diamonds” are too unsightly for most jewelers. But for scientists, their crystalline structure holds valuable secrets stretching back a billion years or more. Yaakov Weiss, an earth scientist at the Hebrew University of Jerusalem, and his colleagues crushed portions of South African fibrous diamonds to extract tiny pockets of fluid trapped within.…

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diamonds remnants

Diamonds contain remnants of Earth’s ancient atmosphere

If you want to look into the early Earth, a key piece of the puzzle is the air of our planet’s ancient skies. Today, for instance, Earth’s atmosphere is filled with gases that support the incredible diversity of our planet’s life. Understanding when those gases piped into the atmosphere could help us understand how life…

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'there diamonds

Are There Diamonds in the Ocean?

If you’ve ever heard the slogan “A Diamond Is Forever,” then a 1940s marketing campaign is still doing its job. The line was coined by De Beers Group, a jewelry company credited with almost single-handedly popularizing diamond engagement rings.De Beers spent decades building a global empire (some would call it a “cartel”) around diamond mines…

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diamonds Lab-made

Lab-made hexagonal diamonds stiffer than Normal diamonds

PULLMAN, Wash. — Nature’s strongest material now has some stiff competition. For the first time, researchers have hard evidence that human-made hexagonal diamonds are stiffer than the common cubic diamonds found in nature and often used in jewelry. Named for their six-sided crystal structure, hexagonal diamonds have been found at some meteorite impact sites, and…