Hexagonal diamond up to 60 per cent stronger than normal diamonds could be used to create super-tough drilling and cutting ...

Deep in the Myanmar Mogok region, a tiny reddish-orange crystal sat unnoticed. To the untrained eye, it seemed like many other stones—polished by water, overlooked by miners seeking sapphires. But ...

Southern Arizona has numerous sites known for their pyroxene minerals, from Twin Buttes south of Tucson, to Ajo, to the Chiricahua, Santa Rita and Patagonia mountain ranges.

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