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Found 21 results

  1. Vopros

    Boulder opal from Austraia

    Here is a boulder opal from Australia. The first image shows the whole specimen , all others are microscopic images. Dimensions are 78.540 x 58.070 x 28.670 mm what do you think? Thanks!
  2. Attached are microscopic images of plants and plant material from Australian boulder opal. This is an Australian boulder opal. It's either forest floor, or detritus from an ancient creek bed or swampy area. The tiny plant stems with hooked leaves might be 'pine' twigs, or perhaps fragments of sphagnum moss, and there may be some seeds and other plants. Here is the video of it. I wonder if somebody could help me to ID some plants. I know some are impossible to ID, but other appear to be complete.
  3. Here are some microscopic images of a boulder opal. It appears to have some prints of leaves and other fossils. What do you think? Is this a play of nature or these are really some fossils there? Here is a video of it
  4. I bought this opal as a boulder wood fossil from Australia. I see that it has a few snails and possible a piece of a bone (the first image). it is a microscopic image. The length of the specimen is about 3 cm. Thank you!
  5. This is a boulder opal with some kind of crystals in it. It was sold as “vegetation fossil”. I am attaching a few images that were taken under a microscope. The dimension of the opal is 15.4 x 9 x 4.9mm And the crystals, or whatever it is, take around 1/3 of the length. So, is this a fossil and a fossil of what or these are some minerals? Thanks.
  6. From the Rocky Ridge Sandstone unit of the Pierre Formation near Fort Collins, Colorado
  7. I was wondering if there's anyone (preferably in Colorado) who can prepare fossils with an air scribe if sent to them and if so what there prices would be for a project. I have a plethora of fossils from the Pierre Shale still encased in matrix and a hammer and chisel is just not detailed enough and it requires breaking and glueing specimens. Hopefully one day I can get my own air compressor and scribe setup but for now I'm in a apartment and that's just not possible. Any feedback is appreciated.
  8. I was really enjoying hiking around different spots in Boulder, Colorado and eventually I came across a beautiful outcrop of the Niobrara Formation. I thought it was so cool that there were shell imprints in the rock and nobody had ever taught me about the Geology of the area and it was really fascinating to see for myself that the whole area was once under the sea. I stumbled upon a massive Inoceramus and I knew I had to haul it home. Not bad at all for a first fossil hunt I don't think I ever found a Inoceramus as impressive as my first. Begginers luck.
  9. I've had some beautiful little hikes around a sandstone outcrop and I've stumbled upon some very decent bivalves
  10. Walton

    Fossil ID request!

    Hello all Apologies in advance for the potentially stupid question, but I promised my 9 year old (fossil hunter/general geology fan) son that I'd get to the bottom of this! During a river walk today, we came across an exposed rock that had some weird line patterning on it, that does admittedly look a little fossil-y. However, elsewhere on the rock there are lots more of these patterns in more random formations, so while I'd love it to be a little more interesting, I suspect it's just some unusual rock form. Anyway, you lot are the experts, so please advise! Thank you! P.S. rock found in central Scotland, UK.
  11. I found a large carboniferous sandstone boulder in a hard to access reclaimed coal mine area. The boulder is buried so that only the top is exposed. Part of the top bedding planes are gone, revealing very nice lycopod rootlets lined up like airliners at a busy terminal. I suspect the main root is in there too, waiting for careful prep work at home. The only way to collect it is to split off as large of a slab as I can handle, and pack it out on my back. Fortunately the specific spot is level and stable and I can lash anything to a pack frame securely. I'm posting to ask for advice on in-the-field large slab splitting. I've never tried to retrieve such a large sample, much less on foot. I think I'll have to trench around the boulder to expose the sides and make working room. Then I either have the choice of hammer and chisel or packing along a battery powered drill and some splitting wedges. And one or two strong friends! Can anyone offer advice or help me ask the right questions? Thanks!
  12. 1foolishcaribou

    boulder anomalies

    Hi. I know these are poor pictures so I understand if nothing comes from them. This 3' by 3' boulder looks like a big dirt clog up close but is solid. It is in central Washington County, northeastern Oklahoma, Pennsylvanian I think, on the Caney River. 99% of the ground you see it sitting on going down the river and around the bend is coral, but I see no coral in this boulder or the only other boulder (out of view). In this post, the lower middle spot in all three pics is what I am curious about. It's about a foot wide.
  13. Virtual_Fossil

    Help me with where to start

    This boulder is on the property we recently purchased. We're in NE Oklahoma. I've been curious about the origin of the rows of pits/holes in it but just now have time to really pursue an answer. I realize that there a good chance that it's not a fossil but I just don't know where to go for an answer. I would greatly appreciate any input or suggestions. The scale is indicated to some degree by my four-year-old's hand in the frame. Each hole/pit is about 1-1.5 cm wide. The rows are separated by about 6-10 cm. The entire stone is maybe a meter or so wide. I haven't seen any other stones on the property with this pattern. Any thoughts or suggestions? Thanks.
  14. mlandroche

    This Can't Be A Rock... Can It?

    I know it doesn't typically look like a dinosaur fossil, but what if some were preserved once upon a time ago, like the people of Pompeii? Just a thought. Could a giant asteroid create the same kind of ashy wave of preservation as Vesuvius? Or, Is this just a granite boulder? I also wonder if earlier man might have been sculpting or carving some of these boulders, because I see a lot of odd ones around here that I want to run out and paint so people can see what I see. I have overlayed a few with what I think they might be, and if nothing else, at least I get to color, haha... I will post those pictures very soon. I don't want to overwhelm anyone with my pics, all at one time, especially if all of them really do turn out to be just rocks. I wouldn't dare think to waste everyone's time that way. Thoughtful of me, huh? I appreciate and value all input. Thanks, in advance!
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