For instance, graphite and diamond are both made of carbon, but the difference in the crystalline arrangements of their carbon atoms means that graphite conducts electricity while diamond is a good insulator.

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Klatten additionally controls chemical manufacturer Altana and holds stakes in wind power outfits and carbon and graphite producers.

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She also controls chemical manufacturer Altana and holds stakes in wind power outfit Nordex AG and carbon and graphite producer SGL and Geohumus, which focuses on developing a water storing granulate to be used in agriculture.

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Germany's SGL Carbon (6, SGG) has fallen 33% since May and has yet to recover as it supplies primarily the hard-hit steel and semiconductor industries with carbon and graphite products, which include electrodes, laboratory components and furnace linings.

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Their results suggest 55 Cancri e is largely composed of carbon (in the form of graphite and diamond), iron, silicon carbide, and, potentially, silicates.

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For instance, the ultra-thin layers of graphene (a two-dimensional form of graphite) are formed by injecting liquid solutions containing carbon and silicon into an extremely hot, ionised gas (plasma) of argon.

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Think of it this way: The graphite in a pencil and a diamond differ only in how their carbon atoms are arranged.

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Elemental carbon had long been thought to exist in only three physical forms: graphite, diamond and an amorphous form, of which charcoal is an example.

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Belonging to a class of worlds known as diamond planets, 55 Cancri e is thought to be rich in the element carbon, which can exist in a variety of structural forms such as graphite (the material used as pencil lead), graphene, or diamond.

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