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Everything posted by d_day

  1. There are many volcanic rocks that will attract a magnet.
  2. The first one, maybe. The rest appear to be bone.
  3. If you have access to a short wave UV light you can test for tungsten. Scheelite (tungsten ore) will fluoresce white or bright blue. If it fluoresces any other color or no color at all then you don’t have tungsten. i think Bob is probably correct saying you’ve got iron stained quartz and a mix of limonite and magnetite.
  4. Looks like some agate with quartz crystal grown on top of it. Also looks like it’s been heavily water worn.
  5. To start with, every app I’ve tried for identifying rocks has been terrible. I’ve tested them with at least 10 known specimens and they all got every one of them wrong. Next, the first pic your app shows up there isn’t even a natural stone. It has very obviously been carved. You can still see the marks left by the burr they used. That tells me the app you’re using is completely worthless. There is nothing to indicate your piece did not originate on earth. I’m not sure what you’ve got but I’m pretty sure it didn’t come from space.
  6. Edit: it seems I’ve quoted the wrong person. I meant to quote pondmn who stated that you might look into a local rock club. This is probably the best advice you’ll get. Here’s a list of clubs that are members of the California Federation of Mineralogical Societies. They’re sorted by name so you might haves to look through the whole thing to find one near you. https://cfmsinc.org/cfms-member-club-list/
  7. That eliminates both glaucophane and jadeite. I really have no idea on this one.
  8. Specific gravity will always help, but I don’t ask for it because most people can’t do it.
  9. Between that and your test with the knife we can rule out serpentine. Glaucophane is still a possibility, though I think jadeite is more likely. There are probably a few other possibilities. Keep in mind though that making a proper ID from photos is difficult under the best circumstances.
  10. https://www.rocksandminerals.com/hardness/mohs.htm
  11. I can’t definitively say what it is. Might be serpentine/serpentinite, glaucophane, maybe even jadeite. Do you know the hardness?
  12. Any metaphysical place is going to be WAY over priced. For instance, the site you listed has “fist sized” chunks of leopard skin jasper for $7.95. Their “fist size” appears to be about half a pound. Most places sell the same same for $3.50 - $5.00 per pound.
  13. My first thought on that piece was carborundum, but I rules that out as soon as I saw the big crystals. There’s a few things that could be going on there. Those could be crystals of the actual mineral, those could be crystals of one mineral with a coating of another mineral, or it could be a pseudomorph, where one mineral grows and is then replaced by another mineral. What is it though? I have no idea. It almost looks like vanadanite coated in manganese (hollandite or romanechite), but I’m pretty sure that’s not it.
  14. I really need to proof read before I hit submit. in my above post, “Norris” should be narrow, and “oven” should be ocean. Ack.
  15. It looks a lot like basanite to me. https://en.m.wikipedia.org/wiki/Basanite#Description
  16. Barite rose and orange calcite for the first two, as Bob and Morlock stated. And, like the others, I’m not sure about the last two.
  17. Honestly, I’m thinking crinoid stem pieces. I’ve zoomed in on the holes.
  18. Looking at those holes makes me think you may have a mold fossil. That happens when an organism dies and is buried. The organism decomposes and leaves behind a hole in the shape of its body.
  19. I think it probably is coral. I can’t Norris down the species but someone else here might be able to. As to your comment about Louisiana being under an oven, the entire south was at one point, which is what made the land so fertile.
  20. Yeah, it appears the user and their comments are all gone. There are a few quotes still around, but anything posted directly by the user went poof.
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