After decades of debate, researchers say that they have found the clearest evidence yet for this rare form of carbon ...

Add Yahoo as a preferred source to see more of our stories on Google. A team of Chinese scientists may have cracked the secret behind the strange Canyon Diablo diamonds. Hexagonal in form rather than ...

Diamonds are famous for their strength, but scientists have long suspected that another form of diamond might be even harder.

Researchers in China have made what they claim to be the first samples of pure hexagonal diamond, a theorised rare variant of ...

“These findings resolve the long-standing controversy on the existence of hexagonal diamond,” researchers said.