Description
Following our initial report of the detection of fullerenes in a geological sample [1] there have been several other discoveries of naturally occurring fullerenes[2-6]. Although there is now evidence for fullerenes in a variety of geological materials, they seem only to occur at concentrations so low that highly sensitive analytical techniques are needed for their detection and verification. The report of fullerenes in shungite in particular has provoked both considerable interest and discussion [7-9].
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