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Post by pleecan (Peter Lee) on Dec 8, 2009 11:40:58 GMT -5
Pyritized Fossil .. collected a few weeks ago. PL  |
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Post by hallucygenia on Dec 8, 2009 13:38:39 GMT -5
That is nice! How well do the fossils from that locality keep? I have had a nasty experience with pyritised twigs decaying - we did eventually get most of the stain out of the carpet!
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Post by pleecan (Peter Lee) on Dec 8, 2009 13:47:49 GMT -5
This is my first visit to Arkona to collect Devonian fossils and I presume the pyritized fossil is stable as it was dug out of a clay pit ( decomposed shale) in damp enviroment. PL
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Post by Joe Botting on Dec 8, 2009 13:54:31 GMT -5
It is a truly gorgeous goniatite, and I hope it stays that way! Being in a damp clay pit is no guarantee - clay will have kept oxygen away, and that is needed for corrosion as well. Kepp a very close eye on it over the winter - any sign of tiny white crystals on it, and it's probably going to go. There are ways to get around it if it does, but it's a shame to coat it in something sticky unnecessarily...
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Post by pleecan (Peter Lee) on Dec 8, 2009 14:02:36 GMT -5
Thanks for the warning Joe. If I store the fossil in Olive oil will it stabilize the pyrite? PL
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Post by Joe Botting on Dec 8, 2009 14:15:47 GMT -5
Hmmm... yes, but eventually it will go rancid - nice !  Mineral oil will do it, though, and if you're getting a lot of pyritised fossils it may well be worth buying a fair bit. |
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Post by pleecan (Peter Lee) on Dec 8, 2009 14:28:46 GMT -5
Thank you Joe. I will store pyritized fossil in mineral oil. Good thing the fossil is only 6mm diameter.... does not really take up much room for storage. PL
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Post by pleecan (Peter Lee) on Apr 20, 2010 10:31:42 GMT -5
This is for the few who still lurk in the background... It is no fun carry on a monologue....... This forum is next to dead with zero activity with sub critical mass. Imaged Trilobite Compound Eye ... stacked images via Helicon Processor:   |
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Post by hallucygenia on Apr 22, 2010 15:31:46 GMT -5
Hi pleecan,
Sorry, we have been neglecting this forum a bit - will try to make up for it.
Love the trilobite eye - you've obviously got the hang of stacking images! I got to see a bit of that in my last job, it's a bit magical when you see the final result.
We're about to go off on fieldwork for a couple of days - will post a few pictures of anything interesting when we get back.
Lucy
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Post by pleecan (Peter Lee) on Apr 23, 2010 13:58:14 GMT -5
Hi Lucy:
This board is alive again... I was almost going to pack up and leave for good. I am really excited as I recently acquired a free Helicon Pro lifetime software for submitting some material to the Heliconsoft. Good luck on your field work!
Peter
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Post by pleecan (Peter Lee) on May 13, 2010 18:51:13 GMT -5
Tentaculite Plate:  |
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Post by pleecan (Peter Lee) on Sept 29, 2010 5:45:45 GMT -5
Trying to keep this site alive.... there are so few contributors.... really sad.... Collected in Sept: Devonian Enrolled Phacops from Arkona Shale formation, 3/8"   PL |
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