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Found 63 results

  1. Does anyone have any tips or tricks to preserve pyrite fossils? How to clean and keep them shiny without decay?
  2. conical shell?

    Hi to all, I've been trying to find a positive id for this one for some time now, my guess is that it could be a partial conical shell with remains of the animal still inside it. The inner 'shell' and contents are pyrited (iron), found in Wiltshire,England in a predomately chalk and flint with a very thin topsoil area, iron pyrite nodules are very common in this location. Than you Tony
  3. I have recently begun my journey into fossil prep, i'm using a dremel electric engraver as it seemed to be the best cheap tool. I have several ammonites from Yorkshire within nodules - these are very hard in the centre and consist of pyritised sediment. It is taking a very long time with the dremel using tungsten-carbide point, so just asking for any advice on how is best to try and get through these very hard bits. Cheers in advance!!
  4. Preventing pyrite rot

    Not sure if this belongs here or the minerals topic, but I would like help with preserving pyrite. I have a fossil from Penn Dixie that has some nice pyrite on it, don't know if the stuff from this location falls victim to pyrite disease but I am looking for a way to prevent it. Any tips are appreciated, Thank you.
  5. Dinosaur bone Compton bay

    Hi, yesterday I found a chunk of dinosaur bone at compton bay. Should I be worried about it crumbling because it has pyrite inside it?
  6. Golden coprolite two?

    In 2014 I saw a post which made me laugh from fossilized6s, it was a pyritized coprolite. In general I will not keep coprolites, however, this past year I am wondering if I have found some golden poo too. It feels very strange actually hoping it is not a worm or sea cucumber.
  7. Carboniferous trilobite ID help

    @piranha @GerryK Can anyone confirm this is Paladin transilis? I found this in the Carboniferous of Illinois. Not sure if they've ever been described here...... And yes it's preserved in pyrite.
  8. Crinoid or Burrow

    Yesterday I broke up a small boulder from an area my town filled in with rock from a nearby road project. I believe that this is Marcellus or Harrell/Brailer Shale. The item pictured is about 2 inches long and completely filled with very pretty little pyrite cubes. Can anyone tell is this an in filled worm burrow or a a filled Crinoid stem? Both things were in other parts of the same boulder. The item in the third photo i cant decide if its a "brach" or a "trilo-bit"? Anyone want to hazzard a guess.
  9. Pyrite & Fossils

    Brought home and broke up a small boulder from an area the town used as a rock dump. This is either Marcellus or Harrel/Brallier Shale. Very sparkly. I know that they'll rot eventually but I'll enjoy them in the meantime! I think that the 4th photo shows a trilo bit or maybe another brach.
  10. Hi there everyone. I have some pyritized ammonites I believed to be real, but now I'm having second thoughts... The ammonoids from the picture below are both supposed to be pyrite, but why is one so much "golder" than the other? I know it is a natural process, so not every piece will be exactly like the other, but my ammonites are all like the first one, bright gold, and they are all from the same seller. I just wanted to know if they are real. I mean, if that's their real color or if they are treated somehow or painted, etc... Thanks in advance!
  11. 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 the ammonoids ) Fragments of them often pop up from the shales, but I rarely find them complete. This one is going in the display cabinets
  12. A number of possible trilobite eggs from the Middle Ordovician Sueve Formation of the Cantabrian Zone were found and studied, during the construction of a tunnel in northern Spain. They found many pyrite spheres which they believe to be eggs from members of the pliomeridae family of trilobites. They also found different post-embryonic stages of calymenacean trilobites. I do not know as much as I would like to about trilobites, but I found the idea of fossilized trilobite eggs interesting. Does anyone know if trilobite eggs have been found before? I left links to the paper below! Thank you for reading. https://scholar.google.com/scholar?as_ylo=2019&q=trilobite+&hl=en&as_sdt=0,33&as_vis=1#d=gs_qabs&u=%23p%3D8GgXRgHLIFUJ https://books.google.com/books?hl=en&lr=&id=12qNDwAAQBAJ&oi=fnd&pg=PA23&dq=info:8GgXRgHLIFUJ:scholar.google.com/&ots=ndL4Yvl33A&sig=77hwzzM82cT_-YA_qeGIEKx1Z5Q#v=onepage&q&f=false
  13. Found in coal seam

    I work in coal mines in South western pa. Northern wv. I find alot of different types of fossils mostly in shale that disintegrate after being in air. Petrified wood. And pyrite. If you have any info it would be greatly appreciated. I know they're from Pittsburgh seam of coal are fern and around 330 million years old.
  14. Edestus Prep

    @DSMJake sent me this beautiful Edestus jaw to prep and I got the chance to work on it today. After a week of relaxing in the prep lab, chilling with the phytosaur, it came out of the box looking like this: To all appearances, it is simply covered in shale and the prep would require some simple abrasion. But as we all know, appearances aren’t everything! Under a good portion of the shale was a pile of pyritized shells! So, I abraided what I could and set to work with the Micro Jack. After the shells were gone, it went back into the cabinet for some more abrasive. After the abrasive, I blew the whole thing off and scrubbed the leftover soda off with acetone. The broken end of the bone had some cracking to deal with so they got a bit of super glue and the whole thing received a good consolidation. Why the whole thing you ask? Under the shale, the bone is also pyritized and the teeth are cracked with some enamel on the serrations missing. In order to lock all that down and reduce the risk of eventual pyrite decay, the whole piece got 2 good coats of thin Vinac. All this took a grand total of 3 hours of work.
  15. Is this Pyrite-copper ore?

    I'm pretty sure that this is pyrite/copper ore or "peacock ore" but not exactly. It is very dense and heavy. About 5 inches by 2 wide.
  16. I recently aquired a ichthyosaur jaw from lyme regis that was origionally purchaced around 1990. The piece has pyrite growth and lots of fractures. I’m guessing theres nothing i can do about the pyrite because it’s such an old piece and it’s already there. but how should i go about how fragile it is? Would a tiny bit of super glue help at all? Or should i just leave it because it’d do more harm than good.
  17. Pyrite and Hematite Fossils

    Hi there, guys. I've been learning a lot from you in the past few days and now I got another doubt. Found the following fossil is the auction website and it kept me thinking. Is this fossilized that way? I mean, I do believe they are real fossils, but were they fossilized by pyrite or hematite or were they treated somehow and covered with the mentioned metals? They do look pretty in my opinion, but if they are a result of a natural process (what I don't believe) that is even more amazing!! Just wanna hear your thoughts. Thanks in advance, Juliano
  18. I found this unusually shaped lump of pyrite in Charmouth UK (Jurassic) and am wondering what it will look like inside. Here is the lump in question: I recently split the below lump, found in Folkestone UK (Albian), And this is what it looked like inside: Will I get a similar result with the new lump as with the old one or would twatting it with a hammer be a waste of my time?
  19. NJ Cretaceous? Pyrite

    Hi everyone, I know it is possible to find teeth with pyrite attached to them in the Jersey brooks (which yield mostly Cretaceous material). I have never seen just a chunk of pyrite come out of here before, however. The pyrite piece below is from a NJ stream - would you say it is in fact from one of the Cretaceous formations present here? It is about 1 inch. Thanks for any opinions!
  20. Pyritized Ammonite

    From the album Fossil Collection

    This is a jurassic ammonite from the UK that has been mineralized by Iron sulfide - pyrite.
  21. Pyritized Clam shells

    Question for the group: is it common for a clam shell to pyritize in contact with a clay? This was from Edisto Beach SC. They were buried in mud to where they are not pyrite. I am assuming the clay is heavy in iron sulfide. Douglas.
  22. I found a block packed full of bone afew week back, but also full of pyrite. I thought it was just full of fish bone, which is quite common and i often leave it but luckily shoved it in my bag. Yesterday I picked it up and decided to have a dig around in it and was pleasantly surprised to find some ichthyosaur verts! So i suspect it's a mix of fish and Marine reptile, or just all ichthyosaur (Hopefully) Does anybody have any tips for prepping bone in pyrite. I'm probably just going to have a dig around and see what i can uncover, smooth it down with the dremel and add some coating to the bone to bring it out. It's Good practice for me but it's wearing my pen tip down haha. Hopefully there will be more verts to find! There's certainly more space to uncover more. Vert cross section on the bottom Ribs? on the bottom
  23. Pyrite fossil care

    Does anyone have any tips for bringing back the shine to pyrite fossils? I have some that barely have any shine left, but have seen pictures of them at full beautiful golden shine. How can I remove the tarnish and beautify them again?
  24. Why are pyrite fossils small?

    Hey everyone, I've been wondering why pyrite fossils are almost always small compared to others of the same species. does it have anything to do with the way the fossil is formed or is it something else entirely? thanks in advance!
  25. Hi I have a question regarding storing and safely displaying a pyrite fossil. I have read a great deal about pyrite disease so I know that's something to be carefull of and I have read you best keep them away from humid and store them in an air-sealed container. And now that's where I am heading with this question, what is all considered as a possible air-sealed container? I am currently keeping my pyrite ammonite (Pleuroceras Spinatum from Buttenheim in Germany) in a small transparent box as seen in the photo below, but is this good enough? Is this air-tight and will this protect the fossil from possibly falling victim to pyrite disease? Or do you guys recommend other ways to display it? Safer ways... Than the second part of my question... Some might already read that I am currently working on a new fossil room, and since it's nearly finished I was wondering wether it was safe to house pyrite fossils in said room when I take some precautions. Cause along with my fossils the room will contain 2 aquaria: one freshwater aquarium with my Polypterus retropinnis, and one brackish water with my Gymnothorax tile. (Also before transforming into a fossil room this room used to be one of the 2 aquarium/terrarium rooms in the house and it contained at one point 12 aquaria and we never really experienced problems with moisture.) As precautious measure I was planning to add a small dehumidifier just to be safe, but so my second question. Would it be wise to house a pyrite fossil in an air-tight container in this room even if it has a dehumidifier in it? And should you also recommend me to preserve the fossil in some paraloid on the fossil, I still have a bottle with 100 ml of paraloid. I would like to hear your opinions on the matter. Which container to use? To preserve it with Paraloid or not? And if I can move it the to new fossil room or if I should leave it in my old display case in my living room? Thank you in advance!
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