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Found 39 results

  1. Agate or petrified wood

    I am pretty sure this is an agate or maybe petrified wood. It is a 1/4" slab and solid. Any help would be appreciated
  2. What is this?

    I have a 1/4" slab of ? I have no clue what it is. It looks like jasper or agate? It is solid considering how thin it is.
  3. Is this an agate?

    I see banding on the edges, so is it an agate? I cut it in half and it has a purple inside. Is that amethyst?
  4. Dinosaur head with skin?

    Trying to figure out if my friends fossil is a dinosaur head with scaly skin or possibly turtle?
  5. another piece of weirdness

    found this in the gravel piles ... its weird for sure. Not sure its a fossil think its a not-fossil ....could be some type of agate?. location: west of Houston in Brookshire gravel load from Brazos river size 1"x1 1/2 " inch.
  6. Here is another one that I would like to know.

    Someone asked for a closer pic.
  7. I found this rock 50 years ago on the farm where I grew up in northern Illinois. The bedrock is far below the surface there. The surface rocks are erratics, dropped by glaciers that moved southwest from Canada through Michigan and into Illinois. It appears to be a kind of agate with some druzy quartz on it. I've recently shown it to several people and have gotten several different opinions on what it is and how it was formed, including that it is some kind of fossil. What do you think? The surface lines you see in some of the photos (most clearly in the third photo) are narrow and evenly spaced. There are about eight lines per millimeter. I increased the contrast in the ninth photo in an attempt to make the lines more visible. The other photos have not been manipulated, except by cropping. The pit in the third photo is about 2mm x 3mm and about 15mm deep.
  8. A few more samples from another area near Fallon, NV I believe is Petrified Wood or other? Thank you.
  9. Is this bone in corprolite?

    My research indicates this should be a corprolite.. there is a chunk of something that kinda looks like agatized bone in it.. Thoughts?
  10. Oolites or something more?

    I found this 40 lb chunk of what looks to be oolitic chert with some agate tubes running through it in east-central Minnesota while out agate hunting. Maybe it's considered a cold water agate, but I'm not really sure what that truly means anyways. Either way, I was wondering if there is something more to this structure besides oolites. Maybe some kind of coral or other reef building organism? Any more information would be great. Thanks!
  11. Here was a nice surprise. I picked up this fossil cluster of barnacles and noticed a nice layer of agate underneath! When I processed the photo I took of it, I saw that the light from my flash dispersed giving this rainbow effect. It's very small but now when I hold to the light I can see the little rainbows! I heard this process is called diffraction grating. I would like to polish the agate but I think the rainbows will go away once the material is flattened.
  12. Agatized Barnacle

    From the album ocean stuff

    Here was a nice surprise. I picked up this fossil cluster of barnacles and noticed a nice layer of agate underneath! When I processed the photo I took of it I saw that the light from my flash dispersed giving this rainbow effect. It's very small but now when I hold to the light I can see the little rainbows!
  13. I have a couple of new fossils I need identified. By my guess they are Ammonites but what do I know? I'm fortunate that these snails come with some identification, a small piece of paper with some handwriting on it. From top to bottom, it says "Large Agate Snails, viviparous, miocene, Lahonten Formation, Black Rock Desert, Winnemucca, Nevada." I'm a little confused because from what I've read, Lake Lahonten did not exist during the Miocene epoch. The smaller snail is about 2½ cm (1") long, from top to bottom in the picture, and the larger snail is about 3 cm (1½") long. Is there anything anyone can tell me about these pieces? Those measurements don't include the concretion attached to them.
  14. Crystal agate fossil?

    I found this today on the beach under a clay cliff, it is known for agate And chalcedony to be found on this beach, what would I call this, it looks like some sort of a bone maybe?
  15. I typically hunt for fossils but who doesn't love fossil and rock/gem hunting at the same time? After reading about Sacha's trip and seeing the beautiful chert/agatized coral pieces, I had to have some of my own (and for the misses;)). 6/11/17 After acquiring a daily state park pass, we drove around to the back of the island on the northwest beach and departed on foot with a plastic bag-thats it. Looking back, all I should have taken with me that day was my swimsuit and crocs because I was lugging around shoes and extra clothing all the way down the beach. The sky was overcast with a chance of light rain, so although visibility was down, at least we weren't getting roasted by the summer Florida sun. The beach was a lot nicer than Apollo beach (which we visited last weekend and found only 1 real fossil) in that it was somewhat developed and had soft, sugar sand up and down the coast. The water was murky and almost oily to the touch with 1' visibility in the surf when the waves receded. Shell and fossil hunters could be found all down the beach in rocky/shelly confluences where the waves naturally brought things in. My first order of business is always to take large samples from the outset area. Within 15 minutes of searching on the surf line, we found our first piece of unimpressive coral and thus gained hope that this site would produce SOMETHING. So we carried on North down the beach for a few hours, passing by the fossil hunters, checking the high tide surf line and the low tide surf line for unusual black or blue rocks. We did see tons of tannish (limestone?) rock of which some contained fossils (pictured below) but we mostly avoided these. At one point when I found a shelly confluence, I waded a few feet into the water and looked for fossils the best way I know how-scooping with my long arms. I know, I should be using a professional sifter, but that will come along later once I can afford one . After only a few more unimpressive fragments of coral, we continued north until we found a huge outcrop of shells from the high tide line which was sitting in a shallow, draining pool of water (I call them cesspools). I found one of the first "gems" in this area right inside a tiny valley left from the draining pool of water. Then another, one that looked like an arrowhead (by coincidence) quickly made it to my pockets. Strangely, we were finding more things as the day went on, but at this point we were maybe a half mile from the outset area and my plastic bag was starting to break from the weight of my shoes, shells, and rocks. After reluctantly deciding to turn back for the sake of potential rain, actually it was only because the misses wanted to, I decided to double check with a quick eye over the same areas that we had so carefully searched earlier. As the tide was slowly rising, larger and nicer chunks of this coral was being exposed so I rushed to grab a few more prize gems even though the plastic bag was sagging with over 20 lbs of weight. We safely got these back to these east coast, and now I am working to desalinate these. I would like to polish some of the gem pieces, who would be the best person to talk to about that? The geode and a few of these slabs look promising, but they are so beautiful and I have no experience with rock splitting so I am hesitant to split these yet.. Here's a cool geode cracker in New York: https://www.youtube.com/watch?v=DcKjd-MLXPM. I was very surprised at the quality and quantity of the coral that I left with that day and can say I have collected enough from that site to last a lifetime. I highly recommend this site to rock and fossil hounds alike. Sorry to keep everyone waiting, here are the pictures one at a time!: #1 #2 Not sure about this one, no obvious physical features define it other than its circular and a flat disc. Not even sure this is a fossil.
  16. 5917a50d333b3_2017-18.jpg

  17. 5917a500387dd_2017-17.jpg

  18. 5917a4f24f3db_2017-16.jpg

  19. 5917a4dec6b5f_2017-11.jpg

  20. 5917a4c30f60e_2017-10.jpg

  21. 5917a4a8d3b27_2017-8.jpg

  22. 5917a4a0f2b91_2017-7-3.jpg

  23. Agatized Petrified Wood

    From the album Naughtistic fossils and rocks

    Couple of pieces of Petrified wood
  24. unusual shaped agates almost like vertebrate

    so in the deserts of new mexico these were found. not anything I have ever seen here and was really curious what they are. they are agate based but shaped like vertebrate so I'm lost. any help would be greatly appreciated
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