Researchers have synthesized millimetre-scale hexagonal diamond, a crystal structure so elusive that many physicists doubted ...

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

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

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

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

Researchers made small, pure samples of the elusive mineral lonsdaleite – also known as hexagonal diamond — and tested its ...

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

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

Hexagonal diamonds are formed when graphite is subjected to strong impact and heat, such as due to a meteorite impact. While ordinary diamond has a structure called cubic, hexagonal diamond is ...

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