A new study by Washington State University researchers answers longstanding questions about the formation of a rare type of diamond during major meteorite strikes. Hexagonal diamond or lonsdaleite is ...

Molten carbon can crystallize into diamond or graphite, but it has been difficult to study this process. New simulations show that graphite can sometimes "hijack" the pathway that would lead to ...

A team of researchers has for the first time observed and recorded the creation of hexagonal diamond under shock compression, revealing crucial details about how it is formed. The discovery could help ...

The graphite found in your favorite pencil could have instead been the diamond your mother always wears. What made the difference? Researchers are finding out. How molten carbon crystallizes into ...

In brief: Chinese researchers have developed a synthetic diamond that is significantly harder and more resilient than those that occur naturally here on Earth. If commercially viable, the new diamond ...

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 ...

IT was shown by Seal 1 that little change was produced by heating natural diamond powders to 1,200° C. in a vacuum (10 −4 mm. mercury) for periods of 15–30 min. Heating the powders to 2,000° C.

"This video explains why diamond and graphite have different properties depsite both being made of carbon. Diamond has a giant covalent structure with strong bonds, meaning that there are no free ...