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.

A team of researchers has reported the first laboratory synthesis and recovery of bulk hexagonal diamond, a crystal form long ...

Even with the weight of worlds on its shoulders, diamond resolutely refuses to buckle under the pressure. Thanks to the highest-pressure X-ray diffraction experiments ever reported, researchers have ...

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

“When love’s gone, they luster on,” sang Shirley Bassey in 1971’s "Diamonds Are Forever." Well, come 2026, that maxim might be truer—with researchers in China reporting that they have succeeded in ...

Carbon is in group IV A of the periodic table with atomic number 6, an atomic weight of 12.011, and a density of 2.26. It melts at 3727 C. The stable form of carbon at room temperature is Graphite ...