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Pyrite Decay in Crinoids from Corey's Bluff, Crawfordsville Indiana?
Mochaccino posted a topic in Questions & Answers
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.- 2 replies
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Hi all. I was recently in Crawfordsville, hunting along Sugar Creek. While it's getting cold out, I've found that this is a great time to do it since the algae is gone and you can see what's under water! I only spent about forty minutes out there, but still came back with a lot of mortality plates, small crinoid pieces, jaspers, blood stones, and some other interesting things I can't identify yet. I found this piece here sticking out of a mud wall in Sugar Creek Nature Park (I made sure to see if collecting is allowed there--it is). Only about an inch was sticking out, so I was shocked to see how big it ended being. I'm still a newbie at this stuff, but know enough to not soak it in Iron Out. Is there anything I can do to get the rust out without damaging it?
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I was wondering who I would contact, aside from the property owner, if I had found a site that has something special. I would just like someone to look at a spot. I have never seen anything like it before. The area has never been cut or dug in any way as far as I can tell. There are slabs on the ground that have crinoid stalks in straight lines for 18-20 inches. There are stalks sticking out of the hillside. And not just a few. It is over 300 feet of creek bank with about a 2 foot layer of crinoid rich siltstone. I walked down the creek and in about 10 minutes I had filled all my pockets with stems. I am just curious what is at this site and would love to get someone to professionally take a look at the place. Who would I contact?
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First I want to say hi to everyone! Been picking up rocks and poking around in hillsides since I was a kid. Until recently I mostly had no idea what I was looking at.. but I’ve always been really good at finding goodies. With that, I’d like to share some things I’ve found in the last couple of weeks! There is a quarter on there somewhere! This is one of the smaller plates that have washed out. This is not Sugar Creek. The creek was high from the recent rain, but the last time I was on the other side, that shelf is absolutely packed with goodies. About 100 yards downstream there are hash plates the size of a small car that have fallen into the water off of a ledge.
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I am hoping to go to Crawfordsville IN this year, but I have heard that there are no places open to the public where you can hunt for fossils there, Is this true? and if so then I need some other ideas of where to go. PS. it doesn't really matter what kind of fossils are foound in the locations, but I do prefer trilobites, brachiopods, and criniods.
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Hello, I believe this to be a "holdfast" from the Crawfordsville Indiana crinoid locality. I am hoping that someone could help with identification of the particular species, and also if there is a scientific name for "holdfast." Thank you!
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Hello, I am hoping that someone can please help me identify the four species of crinoids on the attached plate? I have numbered them for reference and show close-ups. Thank you in advance!
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Hello, I recently unpacked from an old collection this crinoid specimen from Crawfordsville Indiana. I would appreciate any help identifying species. The slab measures 13 x 14 cm, the detail is 7 x 6 cm. Thank you!
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