Graphyne is a crystalline form of carbon that is distinct from both diamond and graphite. Unlike diamond, where each atom ...

Diamond is well-known for being the hardest natural material on Earth, though synthetic forms have been developed that are even tougher – a feat that researchers have managed again, through a new ...

Diamond, graphite and graphene are forms of carbon with different giant covalent structures. Metals and alloys - AQA The structure of metals explains their high melting and boiling points and ...

Most natural and synthetic diamonds feature a cubic lattice structure but there are rare ... and was created by heating highly compressed graphite. Using this approach, the team made a millimeter ...