Scientists create first-of-its-kind ‘hexagonal diamond’ harder than real thing - Yahoo

Scientists create first-of-its-kind ‘hexagonal diamond’ harder than real thing  YahooIn physics first, Chinese scientists create rare 'hexagonal diamond' that's harder than natural diamond  Live ScienceFresh claim of making elusive ‘hexagonal’ diamond is the strongest yet  Scientific AmericanDiamonds Are Even More Forever as Scientists Create Special Harder Variety  NewsweekScientists forge crystal to rival diamond  Metal