A team of researchers has reported the first laboratory synthesis and recovery of bulk hexagonal diamond, a crystal form long predicted to be harder than the conventional gems used in cutting tools ...

Researchers have produced nearly pure hexagonal diamond, a material long theorized to be harder than conventional diamond, by ...

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 ...

A team of physicists, materials scientists and engineers affiliated with several institutions in China, working with a colleague from Umeå University, in Sweden, has grown a diamond that is harder ...

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

Family of curved 2D lattices conceived and analysed in the study (a) The curved hexagonal lattice, (b) The curved hexagonal auxetic lattice, (c) The curved rhombus lattice, and (d) The curved ...