Jump to content

Search the Community

Showing results for tags 'Opal'.

More search options

  • Search By Tags

    Type tags separated by commas.
    Tags should be keywords or key phrases. e.g. carcharodon, pliocene, cypresshead formation, florida.
  • Search By Author

Content Type


  • Fossil Discussion
    • General Fossil Discussion
    • Fossil Hunting Trips
    • Fossil ID
    • Is It Real? How to Recognize Fossil Fabrications
    • Partners in Paleontology - Member Contributions to Science
    • Questions & Answers
    • Fossil of the Month
    • Member Collections
    • A Trip to the Museum
    • Paleo Re-creations
    • Collecting Gear
    • Fossil Preparation
    • Member Fossil Trades Bulletin Board
    • Member-to-Member Fossil Sales
    • Fossil News
  • Gallery
  • Fossil Sites
    • Africa
    • Asia
    • Australia - New Zealand
    • Canada
    • Europe
    • Middle East
    • South America
    • United States
  • Fossil Media
    • Members Websites
    • Fossils On The Web
    • Fossil Photography
    • Fossil Literature
    • Documents


  • Anson's Blog
  • Mudding Around
  • Nicholas' Blog
  • dinosaur50's Blog
  • Traviscounty's Blog
  • Seldom's Blog
  • tracer's tidbits
  • Sacredsin's Blog
  • fossilfacetheprospector's Blog
  • jax world
  • echinoman's Blog
  • Ammonoidea
  • Traviscounty's Blog
  • brsr0131's Blog
  • brsr0131's Blog
  • Adventures with a Paddle
  • Caveat emptor
  • -------
  • Fig Rocks' Blog
  • placoderms
  • mosasaurs
  • ozzyrules244's Blog
  • Sir Knightia's Blog
  • Terry Dactyll's Blog
  • shakinchevy2008's Blog
  • MaHa's Blog
  • Stratio's Blog
  • Phoenixflood's Blog
  • Brett Breakin' Rocks' Blog
  • Seattleguy's Blog
  • jkfoam's Blog
  • Erwan's Blog
  • Erwan's Blog
  • Lindsey's Blog
  • marksfossils' Blog
  • ibanda89's Blog
  • Liberty's Blog
  • Liberty's Blog
  • Back of Beyond
  • St. Johns River Shark Teeth/Florida
  • Ameenah's Blog
  • gordon's Blog
  • West4me's Blog
  • West4me's Blog
  • Pennsylvania Perspectives
  • michigantim's Blog
  • michigantim's Blog
  • lauraharp's Blog
  • lauraharp's Blog
  • micropterus101's Blog
  • micropterus101's Blog
  • GPeach129's Blog
  • nicciann's Blog
  • Olenellus' Blog
  • nicciann's Blog
  • maybe a nest fossil?
  • Deep-Thinker's Blog
  • Deep-Thinker's Blog
  • bear-dog's Blog
  • javidal's Blog
  • Digging America
  • John Sun's Blog
  • John Sun's Blog
  • Ravsiden's Blog
  • Jurassic park
  • The Hunt for Fossils
  • The Fury's Grand Blog
  • julie's ??
  • Hunt'n 'odonts!
  • falcondob's Blog
  • Monkeyfuss' Blog
  • cyndy's Blog
  • pattyf's Blog
  • pattyf's Blog
  • chrisf's Blog
  • chrisf's Blog
  • nola's Blog
  • mercyrcfans88's Blog
  • Emily's PRI Adventure
  • trilobite guy's Blog
  • xenacanthus' Blog
  • barnes' Blog
  • myfossiltrips.blogspot.com
  • HeritageFossils' Blog
  • Fossilefinder's Blog
  • Fossilefinder's Blog
  • Emily's MotE Adventure
  • farfarawy's Blog
  • Microfossil Mania!
  • A Novice Geologist
  • Southern Comfort
  • Eli's Blog
  • andreas' Blog
  • Recent Collecting Trips
  • retired blog
  • Stocksdale's Blog
  • andreas' Blog test
  • fossilman7's Blog
  • Books I have enjoyed
  • Piranha Blog
  • xonenine's blog
  • xonenine's Blog
  • Fossil collecting and SAFETY
  • Detrius
  • pangeaman's Blog
  • pangeaman's Blog
  • pangeaman's Blog
  • Jocky's Blog
  • Jocky's Blog
  • Kehbe's Kwips
  • RomanK's Blog
  • Prehistoric Planet Trilogy
  • mikeymig's Blog
  • Western NY Explorer's Blog
  • Regg Cato's Blog
  • VisionXray23's Blog
  • Carcharodontosaurus' Blog
  • What is the largest dragonfly fossil? What are the top contenders?
  • Hihimanu Hale
  • Test Blog
  • jsnrice's blog
  • Lise MacFadden's Poetry Blog
  • BluffCountryFossils Adventure Blog
  • meadow's Blog
  • Makeing The Unlikley Happen
  • KansasFossilHunter's Blog
  • DarrenElliot's Blog
  • jesus' Blog
  • A Mesozoic Mosaic
  • Dinosaur comic
  • Zookeeperfossils
  • Cameronballislife31's Blog
  • My Blog
  • TomKoss' Blog
  • A guide to calcanea and astragali
  • Group Blog Test
  • Paleo Rantings of a Blockhead
  • Dead Dino is Art
  • The Amber Blog
  • TyrannosaurusRex's Facts
  • PaleoWilliam's Blog
  • The Paleo-Tourist
  • The Community Post
  • Lyndon D Agate Johnson's Blog
  • BRobinson7's Blog
  • Eastern NC Trip Reports
  • Toofuntahh's Blog
  • Pterodactyl's Blog
  • A Beginner's Foray into Fossiling
  • Micropaleontology blog
  • Pondering on Dinosaurs
  • Fossil Preparation Blog
  • On Dinosaurs and Media
  • cheney416's fossil story
  • jpc
  • Red-Headed Red-Neck Rock-Hound w/ My Trusty HellHound Cerberus
  • Red Headed
  • Paleo-Profiles
  • Walt's Blog
  • Between A Rock And A Hard Place
  • Rudist digging at "Point 25", St. Bartholomä, Styria, Austria (Campanian, Gosau-group)
  • Prognathodon saturator 101


  • Calendar


  • Annelids
  • Arthropods
    • Crustaceans
    • Insects
    • Trilobites
    • Other Arthropods
  • Brachiopods
  • Cnidarians (Corals, Jellyfish, Conulariids )
    • Corals
    • Jellyfish, Conulariids, etc.
  • Echinoderms
    • Crinoids & Blastoids
    • Echinoids
    • Other Echinoderms
    • Starfish and Brittlestars
  • Forams
  • Graptolites
  • Molluscs
    • Bivalves
    • Cephalopods (Ammonites, Belemnites, Nautiloids)
    • Gastropods
    • Other Molluscs
  • Sponges
  • Bryozoans
  • Other Invertebrates
  • Ichnofossils
  • Plants
  • Chordata
    • Amphibians & Reptiles
    • Birds
    • Dinosaurs
    • Fishes
    • Mammals
    • Sharks & Rays
    • Other Chordates
  • *Pseudofossils ( Inorganic objects , markings, or impressions that resemble fossils.)

Found 40 results

  1. Partial Opalised Dinosaur Jaw Frag???

    So i happen to come across this image, and it claims to be an opalised dinosaur jaw fragment from SA (South Australia) for me at least i do see some kind of fossil but its identification as carinal is dubious in my opion. What do yall think?
  2. Nautaloid?

    Howdy folks, Last weekend I returned to a place in Texas that I have collected marine fossils at previously. The owners of this area have specifically asked that I not share any details on the location, but it’s a bit of an anomaly as it appears to have a number of fossil bearing matrix including sandstone, shale, limestone, and the thickest mud I’ve ever seen. It doesn’t match any of the USGS data either. I found a number of things there that I would like to preset, but the main one is this: The little plates that make up this stone form a spiral and they shine like opal / ammolite. This tear drop shape is something I’m familiar with as I have another one, smaller, that also shines, as well as chert nodules of the exact same shape that I suspect are related. Here are a few other things I collected at this location: this piece of limestone is rather large, about 20lbs, and it’s filled with things I’m not even remotely qualified to ID. It deserves its own post which at some point I’ll get around to. I collected this at the same location years ago. I think it’s an orthocone or pseudo-orthocone nautaloid. Well, half of one at least. Not sure really, but it also deserves its own post.
  3. Tiny opal fossil

    Hello hello, recently i bought some opal, in amongst the small stones was this. I am wondering if this is a fragment of bone? Maybe a piece of jaw bone? Its from Coober Pedy, which i believe is cretaceous and marine
  4. Six Amazing Dinosaur Fossils

    None of these finds is new, but it is a good excuse to relive six amazing dinosaur finds: https://newatlas.com/science/incredible-dinosaur-fossils/
  5. Tooth?

    Hello! If anyone could help me out with this it would be appreciated. This opal replacement fossil was mined in New South Wales, about 6 years ago. I found it in a parcel of Lightning Ridge rough and have been trying to identify it for a while now. The closest I have come to a positive match (Still not a match but it's close) is the Molar of a giant Marsupial from the order Diprotodontia. There is a wee problem with this, I've read Lightning Ridge Opal is supposed to be from the Cretaceous and Jurassic periods, a minimum of 66 million years old. The Diprotodontia existed throughout most of the Pleistocene, about 63 million years off. HELP! Thanks in advance everybody. :-)
  6. Opal bivalve ID requested

    Hi everyone, I have this opal bivalve for around a year now I think, but I didn't really bother to look for an ID before. But I recently ordered an opal belemnite so I am thinking on making some new ID cards and I would like to make one for this bivalve as well The bivalve was found in the Bulldog Formation,Coober Pedy, Australia (Early Cretaceous, 135 mya) I am not sure if the photo's are clear enough, but it is the typical bivalve you see often from Coober Pedy, just can't find anything on them. Thank you in advance!
  7. Building a home for dinosaur fossils with extra opal bling at Lightning Ridge By Sally Bryant, Australian Broadcasting, https://www.abc.net.au/news/rural/2015-02-03/dinosaur-fosssils-with-opal-bling-at-lightning-ridge/6065346 A couple of papers are: Meakin, S., 2011. Geodiversity of the Lightning Ridge area and implications for geotourism. In Proceedings of the Linnean Society of New South Wales (Vol. 132, p. 71). https://www.academia.edu/24823750/Geodiversity_of_the_Lightning_Ridge_Area_and_Implications_for_Geotourism Watkins, J.J., Behr, H.J. and Behr, K., 2011. Fossil Microbes in Opal from Lightning Ridge: Implications for the Formation of Opal. Division of Resources and Energy. https://pdfs.semanticscholar.org/6e7a/9d5d30343d24a9efb4c15d37602a32c3b10c.pdf?_ga=2.69785872.1453044388.1578279722-895145303.1578279722 https://www.semanticscholar.org/paper/Fossil-microbes-in-opal-from-Lightning-Ridge-—-for-Behr-Behr/6e7a9d5d30343d24a9efb4c15d37602a32c3b10c Yours, Paul H.
  8. Theropod from Australia?

    Hi I found this online and am wondering if its a tooth?, or just a piece of opal. Its 2mm, and is from Lightning Ridge Australia. Thanks!!
  9. Opal ammonite?

    Picked this beauty up at a local pawn shop over the weekend. I have no experience with opalized fossils, but it looks to be an opal ammonite to me?
  10. Opalized Vertebra?

    New possible acquisition but need more info. This was obtained in a trade and originally from Lightning Ridge Australia. It was claimed to be dinosaur vertebra but who knows? It is still unprepped and has matrix that needs to be removed which will further improve the look. Two piece, one is 1.5 inch and the second is 1 inch. There are sections where it looks like the fossil did not completely opalized. Any thoughts? @Troodon - help? Thank you all.
  11. Chasing Opal and Fossils in the Australian Outback An ambitious collaboration between scientists and a local mining community seeks to preserve one-of-a-kind opalized fossils. BY Clare Watson, Undark https://undark.org/article/chasing-opal-fossils-australian-outback/ A recent paper is: Bell, P.R., Fanti, F., Hart, L.J., Milan, L.A., Craven, S.J., Brougham, T. and Smith, E., 2019. Revised geology, age, and vertebrate diversity of the dinosaur-bearing Griman Creek Formation (Cenomanian), Lightning Ridge, New South Wales, Australia. Palaeogeography, palaeoclimatology, palaeoecology, 514, pp.655-671. Yours, Paul H.
  12. Opalized gastropod?

    I've seen a lot of opalized fossils but none exactly like this so I was wondering if anybody could help me pinpoint exactly what it is and if it holds any value? The specimen is roughly 25 mm, semi translucent and has a fair amount of color.
  13. Belemnite Squid Fossil

    Thought I would share this new piece we just got. Belemnite is fossilised squid over 100 million years from Coober Pedy, South Australia. Photos:
  14. Hi Everybody, I am trying to ID some fossils for my friends from the Royal Peacock Opal MIne. They have these fossils for display only at their gift shop but they are not really sure what they are. These are all miocene age fossils, Humboldt County, Nevada. I think the foot and the teeth are from some kind of small horse. I have no idea about the jaw with the teeth. Picture 1: Articulated foot bones from a horse? Picture 2-4: Jaw section from unknown mammal Picture 5-6: Bovine tooth, horse? Bison? camel? Picture 7: Bovine tooth, horse? horse? Bison? camel? Any IDs would be appreciated, Thanks, Jesse
  15. Is this a opalized vertebra?

    Is this opalized wood or possibly bone? Anyone seen this before?
  16. Opalized Wood?

    Can someone please tell me, is opalized/petrified wood actually fully replaced by opal?
  17. Petrified Wood Arizona Ranch

    Well hello everyone it’s been a while for me as it’s been a rough couple of months Traveling to be with my late Sister who battled to the end with Pancreatic Cancer. So I crossed off three of her bucket list adventures she wanted to do in our return trip to Texas. She wanted to find a Sharks Tooth, a snail ( Gastropoda) and dig for Crystals. Well as as I said we just got back from a two week stay on the west coast and the weather was not very good to us. But our first stop we had arranged to dig for Petrified Wood on the Dobell Ranch. Well when we got their to our surprise nobody was around and everything was closed up. So I called to ask what happened and the owner was very sorry as the Tucson Fossil and Minerals Show was in action and she had to delivery a tree they dugout a week ago and forgot about us. Well long story short she said no worries just go and start looking!!! So guess what we did!! i was looking for smaller pieces for my jewelry making and I found about 25 pounds of nice material. I also found some Rainbow petrified wood which made the trip worth it!! Pictures to follow as I have to crop them and cleanup the pictures to fit and download
  18. Opal-Filled Fossils Reveal Timid, Dog-Size Dinosaur That Lived Down Under By Laura Geggel, January 17, 2019 https://www.livescience.com/64522-opal-dinosaur-fossils-in-australia.html https://www.sciencealert.com/a-gorgeous-opalised-fossil-turned-out-to-be-an-unknown-species-of-dinosaur Bell, P.R., Herne, M.C., Brougham, T. and Smith, E.T., 2018. Ornithopod diversity in the Griman Creek Formation (Cenomanian), New South Wales, Australia. PeerJ, 6, p.e6008. https://peerj.com/articles/6008/ Yours, Paul H.
  19. I saw some beautiful opalised fossils in An Australian museum and I was just wondering if it is possible to acquire one (without huge funds) even if that is not possible it would be nice if anyone has them if they could show themthese at the ones I saw in the museum
  20. opal fossil, what is it?

    Hello All, I was hoping that someone could help me identify this bone? its from the mid-Cretaceous Griman Creek Formation of Lightning Ridge Australia I don't think its a yabby button or turtle shell, as the piece is not rounded like a yabby button and there is bone texture. the piece is bilaterally symmetrical and there appear to have joins or groves where the bone meets. The underside is not flat like I would expect for turtle shell... Looking forward to your replies Rod
  21. Beautiful New Species of Dinosaur Preserved in Opal!

    https://www.nationalgeographic.com/science/2018/12/exclusive-sparkly-opal-filled-fossils-reveal-new-dinosaur-species-paleontology/ For all of the members here who love both minerals and fossils.
  22. strange center in pebble

    found this this morning... any ideas...fossil?...Opal?..animal mineral or vegetable?..jellyfish?...open to suggestions? I was leaning toward possibly chocolate opal but the weird things in it have me stumped...is it some type of fossil? if its not a fossil and is opal never found one before...the whole stone is about three quarters of an inch with the center only just over 1/4 th of an inch. found in our gravel drive in texas...but really it does not look opal so was thinking fossil of some type?.
  23. lightning ridge fossil

    Hello would this be some opalised bone and could be from a dinosaur or some marine reptile ?
  24. Opalization?

    I was wondering a few things about opals effect on fossils and bones in general. 1) does it degrade the value? 2) how long does it take? 3)how does it work? 4) would I be able to do it to some spare animal teeth? (Hope that’s not weird haha)
  25. I used to be a member her many years ago when young Knackers McGee started the site showing off his wonderful finds, time marches on, now i have somethig to contribute of note. I aquired a collection of Gem grade Opalised Plesiosaur bones, mainly half verterbrae, whatsit called, split vertically. Included, was one unknown perfect split shown below. If anyone is interested in such things, I can post more pics and links to videos for your amusement. This image is of the best split, most likely broken in the field by the pick. The central inclusions are very shallow. I could not believe my luck as the person who sold then to me did not recognise the bones in the parcel. Sadly I did not buy all of it, so there is or are people out there with half a dozen matchng halves to what I have. Some of the pieces have great detail of bone structure on the outside, some look to have internal passages preserved in great detail. Veins or ateries not opalised within the Opal. All very rare to find as ordinary fossilised bone, opalised is very very rare.