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  1. Bootsuki

    Fossil Geode

    Found at a junk store in Graves County, Kentucky. Unfortunately the owner didn't remember what estate sale he found it at. I bought it as a simple geode but after cleaning it up I think it may be a geodized crinoid calyx. Its extremely heavy, sorry, no bananas for scale. Thoughts?
  2. clamshellgeode

    Clamshell Geode, with dogtooth calcite

    I have this, what I call a clamshell Geode, dogtooth calcite ? Please help me identify this piece! I can't find another one with both halves. Can you find one with both halves with a geode inside?
  3. Hello everyone! I'm typically a Cretaceous collector but spent the last month in Long Beach Island (LBI) New Jersey so I figured while I'm there, I would do some serious collecting. These fossils are glacier deposited Paleozoic specimens. Overall, I probably spent around 30 hours collecting. My biggest surprise was the trilobite imprint (picture 1) however, I was also pleasantly surprised by the number of crystalized/geode specimens. Here my my favorites from the trip.
  4. Check this out its unbelievable fish trapped in amethyst geode outer shell formed of insects
  5. Betsy5758

    Crinoid Calyx geodes

    I’ve had great success in finding multiple Crinoid calyx in a stream in St Louis county, Missouri. The quartz drusy in the geodes are beautiful. Never cut a Crinoid open - many of them already have a “viewing hole” to see the amazing sparkle inside!
  6. Help needed. Are these 'just' (agate) geodes or could these be fossils? My guess is that these may be crystallised fossil shells. Hope someone can shine a light on these.
  7. JordanPS

    Geodized crinoid possibly.

    I believe these are geodized crinoid. Found at my residence in Casey county, Kentucky. I know crinoid are very common and I believe these could all be. I posted on here a month or two ago and have learned a bit since then but I like extra opinions. Thank you
  8. Andre Pterosaur

    Éthiopien fossils in opal

    How strange is that some volcanic geode opal containing plant stem and some géode are completely different. i show you a chocolate opal geode it was find in 1994 at YTA Ridge , since the area is extinct . i was so lucky when I splited the geode it didn’t blows on me as it was full of opal . as you can see it shows a snake skin , and different figures. and you see some volcanic gas tubes replaced by translucent crystal Opal.
  9. The below open access papers are interesting. Gázquez, F., Monteserín, A., Obert, C., Münker, C., Fernández-Cortés, Á. and Calaforra, J.M., 2022. The Absolute Age and Origin of the Giant Gypsum Geode of Pulpí (Almería, SE Spain). Geosciences, 12(4), no.144, pp. 11, open access Canals i Sabaté, À., Van-Driessche, A.E.S., Palero, F. and Garcia-Ruiz, J.M., 2019. The origin of large gypsum crystals in the Geode of Pulpí (Almería, Spain). Geology, 2019, vol. 47, num. 12, p. 1161-1165. open access Yours, Paul H.
  10. bay

    Fossil/Gem?

    Going through a family member's old stuff and found this along with a few other dinosaur bones. They grew up in San Juan county Utah, so this was likely uncovered from that region, but I can't say with absolute certainty. I don't know if this is a fossil or just a geode. I myself have almost no experience in this area. Any help appreciated. Thank you!
  11. Tales From the Shale

    Graf Iowa Geode

    A sizeable mineral coming from the ever famous Graf roadcut that exposes the Elgin of the Maquoketa. Im thinking calcite, but im gonna be honest I haven't a clue.
  12. I found this rock while fossil hunting in Beaver County, Pennsylvania. The surface rocks there are Conemaugh Group. I don't know much about rocks and have no idea what this is. Please help ID. Thanks.
  13. I have a small 4” tile saw, but and looking for something bigger. Given the blade can be changed for rocks, is there enough of a functional difference to justify buying a dedicated rock saw versus a tile saw? Is lack of power for bigger rocks a consideration at all on the tile saws? thanks
  14. connorp

    Indiana geode to ID

    I collected this geode while exploring Mississippian exposures in Monroe County, Indiana. I was curious if anything could be said about the minerals present? I am not a mineral guy, and haven't got a clue. Thanks.
  15. nala

    Strange Geode to ID

    This is a strange geode i received without ID,perhaps an opinion ?
  16. Jan Lester

    Calyx?

    Unfortunately I don’t have any provenance for this rock. I bought it years ago screwed to a piece of driftwood for my fish tank. When the driftwood had withered away to a twig, I was throwing it away, but noticed the fossil traces on the rock and kept it. Came across it a few weeks ago, and started messing with it. The fish store was local, and I would assume that this was created by a somewhat local person (in east TN), but I don’t know. The top of the “calyx” is translucent from the underside. Not the softest limestone I’ve found…I can see signs of bryozoans and brachiopods, but it’s hard to expose them.
  17. dino joe

    What is it

  18. The world's largest crystal cave (Pulpí Geode, Spain) BBC, Travel, July 22, 2022 Inside the world's largest crystal 'cave' (Spain) BBC News, April 13, 2022 The World's Largest Geode Formed When the Mediterranean Sea Disappeared, New Study Reveals, Brandon Specktor, LIve Science, October 18, 2019 Crystal Cave Ohio – Another geode Crystal Cave Ohio – Another geode Crystal Cave - The World's Largest Geode (Ohio) Crystal Cave is located in Put-in-Bay, Ohio, South Bass Island in Lake Erie YouTube video of Crystal Cave, Ohio yorus, Paul H.
  19. TwoOaks

    Type of geodized fossil?

    This was found on one of my recent hikes in a creek bed in south-central Indiana (Monroe County). Geodes are very common finds as well as crinoid columnals and horn coral but this is the first find of this type. So I would think it is some type of geodized fossil but would like the experts' opinions. The first 3 photos (taken in natural sunlight) are "side" views and the 4th shows the "bottom". What do you guys think? Thanks in advance for your feedback.
  20. Poor Richard

    Little something...unsure?

    Hi all, I have this little object. Just wondering if it stands out to anyone. Thanks all.
  21. Seawitch7c2t

    Help identify this fossil

    Please help me to identify this fossil. I am new to this and came across this unique find. I gave Google lenses it and came up empty. Any help to this will be greatly appreciated. Thank you.
  22. Hi guys not been on much due to limited internet sorry however I had ordered a 'geode' from a seller in China cheapish it is around 1.9kg in weight and it arrived. It looked like something I had seen before and sure enough I found similar listed as a dinosaur egg on the famous auction site, just wondered everyone's thoughts on what it actually is lol? couple of pics attached, im sure it is neither an egg or a geode personally
  23. Recent finds and acquisitions from location west of Dallas now buried.
  24. TwoOaks

    Geodized fossils?

    I'm a newbie to The Fossil Forum. I hike in the hilly areas of south-central Indiana (mainly Morgan, Monroe & Brown counties) whenever I get a chance and many times I end up walking the rocky creek beds looking for fossils & unusual rocks. These creeks are rich in geodes and there is a lot of shale & limestone. I believe that some of the unusual finds are geodized fossils. I have several that I'd like to share with the forum to get opinions from the experts. Attaching multiple photos (15 total: 3 groups of 5) of 4 different specimens with the first five photos showing a pair which have similarities. Thanks in advance for any input.
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