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Pyrit or marcasit

ANDRE HOLBECQ · 2009-04-06T19:35:26+0000

from England where the sames noduls of pyrit exist as in the chalk of the Cap Blanc Nez

By ANDRE HOLBECQ
April 6, 2009 in Geology, mineralogy and paleontology

https://www.geoforum.fr/topic/11761-pyrit-or-marcasit/

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https://www.geoforum.fr/topic/11761-pyrit-or-marcasit/