They're naturally occurring in soot http://www.azonano.com/article.aspx?ArticleI... | Hacker News

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		sp332 on July 18, 2014 \| parent \| context \| favorite \| on: Harry Potter and the Methods of Rationality They're naturally occurring in soot http://www.azonano.com/article.aspx?ArticleID=1782 and I suppose pencil lead as well.

mcguire on July 18, 2014 [–]

Graphite is used in pencils by being mixed with clay and compressed, then heated in a kiln. It's essentially a ceramic. Diamonds, pure graphite, buckminsterfullerenes, etc., are pure carbon.

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