Mochaccino Posted April 14, 2022 Share Posted April 14, 2022 Hello all, I hear that crinoids from a site known as "Corey's Bluff" of Crawfordsville, Indiana tend to be susceptible to pyrite decay. I don't know if this is a pattern but I've noticed a few crinoids from this location having black spots that I'm told are pyrite. Could I ask any members who've dealt with these crinoids or heard of this speak about their experiences? I noticed @Harry Pristis for one has some very nice crinoids from this site with such spots. I'd really appreciate any and all thoughts. Thank you. Link to comment Share on other sites More sharing options...
Harry Pristis Posted April 14, 2022 Share Posted April 14, 2022 I've had the slab of crinoids from Corey's Bluff for more than 40 years with no problem. I have never heard of pyritized specimens from that site. 1 http://pristis.wix.com/the-demijohn-page What seest thou else In the dark backward and abysm of time? ---Shakespeare, The Tempest Link to comment Share on other sites More sharing options...
Mochaccino Posted April 15, 2022 Author Share Posted April 15, 2022 8 hours ago, Harry Pristis said: I've had the slab of crinoids from Corey's Bluff for more than 40 years with no problem. I have never heard of pyritized specimens from that site. I see, good to know they've been stable, thank you! Link to comment Share on other sites More sharing options...
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