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  1. Found this at the weekend on Charmouth beach, the black flakes look like scales or possibly bone. We looked at hundreds of bits that morning but nothing else like this, any ideas?
  2. Misha

    Pyritized rhynchonellid brachiopods

    From the album: Misha's Silurian

    Stegerhynchus neglecta Middle Siluran Waldron Shale Waldron Indiana
  3. Apologies for the dramatic title. I thought it sounded cool and stuck with it even though 90 + 80 + 80 is only 250 . Anyways... This past 30 days, I decided to make it a point to check out some new spots. I won't be living in Austin soon, so I thought it would be good to branch out and scout some new locations with potential. I've found lots of creek-worn mosasaur bits and pieces over the past year. I'm ready to find things in situ, and, one day, something articulated. It's a tall order, I know, but I feel like it's the next step and really the ultimate goal I've always had. So, th
  4. Hello, in my quest for jet and amber I came across this piece this week in an old mine. This is the first time that I have found a piece of good jet covered with its bark totally pyritized over several millimeters. I find the result very pleasant but I fear for its stability in the months or years to come! This dates from the Turonian and the abandoned mine is in Languedoc Roussillon in France!
  5. Back in January I decided to check out the Ammonite Beach at Lake Texoma for the first time. The site is well known for its giant Duck Creek ammonites that can be found scattered all over the shoreline. The weather was surprisingly not that bad despite it being the winter. The water level was quite low and there was plenty of good ground to search along. During my time there, I had some success in finding my own ammonites which gave me an excuse to finally put my rock hammer to use. I stumbled upon some echinoids, but none of them were in all that great of condition, so I might need to head ba
  6. RuMert

    Pyritized echinoid spine

    From the album: Late Jurassic echinoderms of European Russia

    Ulyanovsk Oblast, Kimmeridgian, 2 cm
  7. Hello, I've recently collected some fossil wood from the London Clay. However, I have heard that it is prone to pyrite 'disease'. I've cleaned the wood with water, and plan to keep them with packets of silica gel to reduce humidity. Will this be enough to prevent pyrite oxidation occuring? I've just attached some photos of some of the wood that it can be seen on. There is also this white-coloured material on this bone. Is that anything to be concerned about? Many thanks
  8. One is pyritized and I have no clue what it is. The other I’m thinking is a plant? Found alongside loads of crinoids
  9. I've been recently looking into working with b72 for preserving and strengthening some of the pyrite and coal fossils I have. At the moment, I have a few questions regarding this topic: 1) For DFW folk, do you recommend any stores that sell b72 in the DFW area? For others, do you recommend any reputable online stores that ship it? 2) Should I store acetone in the original container I purchased it in? What is the safest part of the house to keep it? 3) What are any general tips/tricks you wish you knew before you started using b72? Feel free to answer as few of
  10. cngodles

    A plant in limestone?

    This one has been sitting in my "interesting but I have no clue" pile for a while. When I found it, I was splitting limestone laying in the stream. I've found that when you split limestone, immediately after splitting you'll get a couple moments of a sharp looking specimen before things start to oxidize. The limestone is a very dark gray, or almost black color. You either see black limestone or white calcite pieces while splitting. I split this particular piece open and right in the middle was a 3-4 cm long, 8 mm wide gold looking rectangle in the middle of the flat broken limeston
  11. Cliff Hanger

    Ammonite ID

    I would be grateful for help with identification of this ammonite. It is Sinemurian and found in Gloucestershire.
  12. Hey everyone! I thought I'd share a few of my finds from the past couple months and get yall's opinions. Over winter break, I went back home to North Texas and did some searching around Ammonite Beach at Texoma and the NSR with my family. At Texoma I had a nice time hammering out a few ammonites, collecting teeth, and surprisingly finding lots of smaller, pyritized ammonites that I did not expect to be there. The NSR was a bit slower, but I at least got a nice Squalicorax as shown in the pics below. Since school has started, I've been down in Austin. I've been finding the usual stuff, but the
  13. EPIKLULSXDDDDD

    Submatelliceras brazoense

    From the album: Favorites

    Ammonite. Submatelliceras brazoense from Waco Pit, Del Rio Formation. 8/6/21
  14. EPIKLULSXDDDDD

    Mariella brazoensis

    From the album: Favorites

    Ammonite heteromorph. Mariella brazoensis from Waco Pit, Del Rio Formation. 8/6/21
  15. 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.
  16. Hello, I went on a trip to Lyme Regis, U.K. last week and came back with some lovely pyrite ammonites and a small ichthyosaurs vertebrae. However we also found this. I’m not sure it’s a full pyrite piece (6cmx6cm) as there is an impression of an ammonite however there are these pyrite cone shapes. Are these just Echinoids Or have I got really lucky with some shark teeth? (very unlikely I know!). I only came across this last one via the National History Museum fossil app which has a picture of a Hybodus delabechei teeth and it looks very similar from a top down view on to the tooth
  17. Hello, I'm looking at this ~5cm Ohio Silica Shale Paraspirifer bownockeri. I was wondering if such bright gold coloration indicates "enhancement" of the pyrite by harsh prep, acid treatment or brass wire brush? Or is this just the natural color of some specimens? Many pyritized Paraspirifers I see are more grey or silvery (though I have indeed seen such gold ones). Other pyritized fossils as well seem to typically be more the silver/grey color, and as far as I can tell Pyrite itself is generally paler than a vibrant gold. Thanks.
  18. JamesAndTheFossilPeach

    Trip to a secret spot

    After quite literally stumbling upon this deposit today we had quite the day looking for gonaitites.
  19. JamesAndTheFossilPeach

    Pyritized gonaitites

    Few gonaitites I prepped today
  20. themanicjuggler

    Pyrite dimples with fossilised wood

    Another find from Saltwick Bay, this time very recent. I'm guessing that the main chunk is fossilised wood of some sort, but I'm stumped by the small (~1cm diameter) patch of pyrite that exhibits very regular dimples (see images 1 & 2). Any ideas?
  21. I have cracked open some slate with pyrite and have some interesting finds. The pyrite is quick to rot and most of what I have found in my area thus far seems to be made of or encased in sediment with much pyrite. If I brush the pyrite layer it simply destroys the thin film of what was. Am I just stuck until I get my stereoscope? I will have my air pen and sand blaster soon. I was thinking perhaps just air blast it? I have tried to file it down with my diamond block and wondering if I should get a much finer grit and polish to give it a smoother surface but I would only be getting the o
  22. Hi all, A couple of years ago I acquired a lovely pair of plesiosaur propodial bones from Lyme Regis. It was a matched pair of both humerus and femur. Today, when I was looking to make space in my cabinet for a new acquisition I had made, I discovered some odd dust next to the humerus that, on inspection and to my horror turned out to be pyrite bloom! I immediately removed the specimen from the cabinet, checked the other podial and nearby fossils, and used a tooth brush to brush of the most direct traces of pyrite decay. But the question is: what now? How do I ensure the propodial's prese
  23. RuMert

    Big pl(es)iosaur vertebra

    From the album: Late Jurassic plesiosaurs from the Volga

    Ulyanovsk Oblast, Undory, Kimmeridgian, pyritized
  24. RuMert

    Big Kimmeridgian gastropod

    From the album: Late Jurassic gastropods of European Russia

    Tatarstan rep., Tetyushi. Pyrite
  25. Manticocerasman

    Bactrites sp.

    I've been cleaning up a few boxes with devonian fossils from the past few months and came around this nice little fellow. I cleaned him up and gave him a paraloid treatment to preserve the pyrite. It is a complete specimen of a Bactrites sp. from the Matagne shales ( Frasnian, late Devonian ) from Belgium, both phragmocone and body chamber are preserved. They are a little unusual, as the do not belong to the nautiloids as his first appearance might suggest but they have their own subclass and are considered to be the ancestors of the ammonids ( they have a ventral syphuncle like all
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