Discover the fascinating science behind how a pencil writes, from carbon atoms to condensed matter physics explained ...

Carbon, graphite and diamond materials include vitreous, amorphous, or glassy carbon; hexagonal and pyrolytic graphite (PG); and naturally-occurring and synthetic diamonds, diamond-like carbon (DLC) ...

This general rule also operates at the atomic scale: diamond and graphite are made of carbon atoms but their distinct atomic arrangements lead to completely different optical responses.

Credit: OpenStax, CC By 4.0 While all these dead bacteria are the ultimate source of graphite (not to mention every other carbon mineral, from coal to oil to diamonds), exactly what type of ...

"We directly thought that this must have a huge implication for the speciation [the distribution of an element or an ...

Depending on how big a customer wants their diamond to be, it can take six to eight weeks in an HPHT machine to coax graphite to crystallize into a gem. "The larger the diamond, the longer it ...

Diamond is transparent. It can be cut into shapes that sparkle for jewellery. It is also extremely hard, making it perfect for drills. The atoms in graphite are arranged in layers that slide over ...