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

The brilliantly shiny diamond is more than just pretty; it's one of the hardest minerals on Earth, with a name derived from the Greek word adámas, meaning unbreakable. Scientists have now engineered a ...

New research indicates that a rare form of diamond may originate in the burbling cores of distant worlds, arriving on Earth thanks to violent cosmic collisions. According to a team of scientists in ...

A Chinese research team has produced bulk hexagonal diamond, a crystal structure long theorized to be harder than ...

Diamond is famously known as the hardest mineral on Earth. “There are hundreds of claims from people who believe they have ...