Dear Erling,,
Working with our only graphite-producing mine here, I have seen their
flotation process that produces a graphite froth, which, dried in that
state might produce spongy graphite.
With regards,
Walt Trzcienski
Erling Krogh Ravna wrote:
>Dear colleagues,
>our department recently received a sample of spongy graphite. Under the
>lens it has a pumice-like texture indicating it has been in a molten state.
>This, however, appears to be unlikely considering the extreme T required.
>Our best guess so far is that this could be a result of lightening strike.
>Does this sound likely? Have any of you heard of a similar phenomenon?
>
>
>Best wishes
>
>Erling Ravna
>
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_____________________________
Walter E. Trzcienski, Jr.
Departement de geologie
Universite de Montreal
CP 6128, succursale centre-ville
Montreal, Canada H3C 3J7
Tel: 514-343-5977
Fax: 514-340-3970
e-mail: [log in to unmask]
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