Add Yahoo as a preferred source to see more of our stories on Google. Scientists report creating pure hexagonal diamond, resolving a long debate about the rare meteorite mineral lonsdaleite. (CREDIT: ...

Researchers have produced nearly pure hexagonal diamond, a material long theorized to be harder than conventional diamond, by compressing and heating graphite under extreme conditions. The resulting ...

Atomic structure of the hexagonal diamond. Image from the study. Researchers named it lonsdaleite, after crystallographer ...

Chinese scientists claim to have created the long theorised hexagonal diamond, stronger than the real thing, and only found ...

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

Diamonds are famous for their strength, but scientists have long suspected that another form of diamond might be even harder. Evidence of this was gathered over the past sixty years in meteorite ...