Can copper be turned into gold? For centuries, alchemists pursued this dream, unaware that such a transformation requires a ...

each exhibiting distinct physical and chemical properties. These allotropes include well-known forms like diamond and graphite, as well as less common structures such as graphene and carbon nanotubes.

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 ...