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Everything posted by bigrex

  1. Quartz vein possibly sandwiched by calcite veins, some staining. Easier to determine for sure if in person.
  2. Who knows, white stuff could also be calcite, depends on the hardness.
  3. Yep virtually impossible to tell from the photo. If softer it could also be a limestone with calcite veins. Lots of possibilities, some more likely than others.
  4. Sorry, like others said, fools gold or iron pyrite, maybe mica too. Like others said, crush it if you have a way to do so, perhaps some very small powder gold, but likely most, if not all of what you see is pyrite.
  5. Kinda looks like banded iron. -Could be quite old: https://en.wikipedia.org/wiki/Banded_iron_formation
  6. This is more of what I have been doing as of late in the countryside, since what little gold claims there were around have become less accessible in my state. Feel free to look around the channel a little. https://www.youtube.com/c/WasatchWendigo/videos https://www.youtube.com/wasatchwendigo
  7. Looks like carnelian, I type of microcrystalline quartz
  8. Andrographis, now you're talking. Some tout that as the herb which spared the country of India severe casualties during the Spanish Flu.
  9. Green River Formation has world class specimens, but too young for trilobites or there are none in the deposit.
  10. Dolomite caught up in a basaltic lava flow? No idea, but they both look like fairly nondiscript gray rocks, no very easily identifiable minerals as far as what photos would tell.
  11. From the photos, I would guess quartz, if it's softer, then maybe calcite.
  12. Great stuff, especially for Utah, may I presume that is Amasa Valley gold?
  13. I don't seem to see anything that would indicate there is a brachiopod there.
  14. Thought some of you guys might appreciate this presentation about the mines that produced wulfenite in Arizona. He goes through quite a few mines across the state, and shows all sorts of specimen examples as well as some photos of the mines.
  15. Is it opaque, is it of metallic or glassy luster? Hard to tell in the photos. Does it seem heavy for it's size?
  16. Could be all sorts of things, calcite veins on limestone, quartz veins on a metamorphic rock, etc.
  17. Looks potentially sedimentary, not sure of much else.
  18. Lots of rocks are tough to identify by photo, minerals can be easier.
  19. Russia refurbed them during the cold war and then they were stored in cosmoline. It would take over $1000 to reproduce them today. Prices keep going up on them, just a few years ago you could get one for $89, last I checked in Cabelas they wanted $450, of course Cabelas always charges more. Ammo for them used to be 17 cents a round, but that is no longer the case.
  20. What he says is true, you will find much more at the pay place. However, going off to look on your own at least gives you a chance to find a rarer type of trilobite. At the pay place they keep the layers and beds that seem to have rarer specimens roped off from customers. I'm not sure if they actually confiscate specimens if someone were somehow able to finder a rarer species, but it's not likely they will find one anyway. There's one spot I need to revisit where I found the bottom half of a really large one. Unfortunately, I set it down for a moment and then was unable to find it again after looking everywhere at dusk. Still, it was evidence of larger/rarer trilobite species in the area. I tend to try to avoid the black shale myself. Prefer the Marjum Formation and Weeks Formation to the Wheeler Shale. Below is the first trilobite I ever found that I mentioned in some of our correspondence. It's a Modocia Typicalis in tan shale of the Marjum Formation. They aren't that concentrated in that area, but there are some there. Maybe a little more like nuggetshooting in a sense. At the pay place the value of the trilobites will normally run from approx. $5 to $20 vs. $80 to $300+ for rarer specimens.
  21. Cool stuff, nice pics. Very nice Asaphiscus Wheeleri trilobite there and neat topaz specimen. It's amazing that little cinder cone still turns up so much yellow labradorite. I went there once almost 20 years ago. I also stopped by Lake Sevier once to do a little photography and quickly found out that is was not entirely solid. I think during Spring and this time of year it would be at it's wettest. I was able to carefully go out on to the lake but it was rather muddy with damp salt. In contrast, the narrower salt flats out by Ibex Well are very dry. Great views of the Milky Way out there. Anyway, glad I was able to pass along a little knowledge of the area, glad you had some success out there. Let me know if you ever make it out there again and I'll try to join you on a Saturday (if you hit the trilobites then.) Fall is a good time, less snakes (at least in the trilobite areas) I've not seen snakes yet at Topaz Mtn, but that does not mean they don't exist there. Still, for the pay place (U-Dig Fossils) I get the impression that Fall is not a good time. I went there one Fall and the guy seemed to behave as if there was not much to find since they do their excavation blasts in the summer. He did not say that, I just inferred that from his body language and since I did not find as much as most people describe.
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