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Scientists create first-of-its-kind ‘hexagonal diamond’ harder than real thing  YahooFresh claim of making elusive ‘hexagonal’ diamond is the strongest yet  Scientific AmericanIn physics first, Chinese scientists create rare 'hexagonal diamond' that's harder than natural diamond  Live ScienceDiamonds Are Even More Forever as Scientists Create Special Harder Variety  NewsweekScientists Finally Made the Mysterious Hexagonal Diamond Long Thought Impossible  ZME Science