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Everything posted by d_day

  1. One of those is a chunk of asphalt from an old road or parking lot. The rest are pieces of industrial slag. Not only are they not meteorites, they are all man made.
  2. So, I raised $322. It doesn’t seem like much, but it was enough to put me in fourth place in my local ride. Thanks to all of you that donated. The money will help in the fight against cancer. And if you didn’t donate? Thanks for at least taking the time to read through this.
  3. And sometimes even cinnabar is that color. And of course there’s the other rhodo, rhodonite. i think though that if this is not paint, it’s most likely rhodochrosite.
  4. Looks more like the other feller is the one what started the argument.
  5. My money’s on slag used as ballast. No telling without more info though.
  6. If anyone else is interested in sponsoring my ride, there’s just two cars left to do so. If you can give a little for a good cause, please do. If you can’t, I still appreciate you taking the time to read this. Thanks to any and everyone who has taken a look.
  7. The base is a quartz crystal cluster, the trunk of the tree is glass, and the “leaves” appear to be tumbled agates, but I can’t tell for sure.
  8. I didn’t see this last time I checked in. Thank you so much for your help!
  9. If this isn’t allowed, or is in the wrong place, please delete or move. On Sunday, September 29, I will be participating in the Distinguished Gentlemen’s Ride to raise money for prostate cancer research. If any of you would like to sponsor my ride, please do so here: https://www.gentlemansride.com/fundraiser/PhilBeebe321035
  10. That doesn’t look at all like montana agate to me. On top of that, agate is very hard. It runs between 7 and 7.5 on the mohs hardness scale. If it were agate, it would have been much more difficult to cut than what you indicated.
  11. Green crystals? Magnets have a slight reaction? Light grey powder when crushed? Sure sounds like basalt to me. Olivine (aka peridot) is often found in basalt. Again, it’s very hard to make an ID from pictures, so I’m not going to say 100% it’s basalt, but I’m certainly leaning in that direction. And some tips for cutting: Cutting very hard stones, and trying to cut too fast can glaze your blade. Basically, steel from the blade is dragged over the top of the diamonds, which greatly reduces their effectiveness. You can deglaze the blade by cutting a silicon carbide sharpening stone or old grinding wheel. This WILL accelerate wear, but will actually make the blade last longer.
  12. Doesn’t look like anyone’s carved it to me. Looks like it was broken by geological pressures and lots of time. If my ID is correct, the stone in the middle is a remnant of whatever it formed on. It could be other minerals too. If you do a streak test and the streak is brownish black, then it’s probably psilomelane.
  13. Looks like a fragment of botryoidal hematite to me. Could be a few other things though.
  14. First one’s got me stymied. At first glance looks like a granite of sorts. Might be a quartzite. Can’t really tell. Can’t give a positive ID on the second one, but it looks like basalt to me.
  15. Zooming in on your second picture it looks very much like horn coral. The only horn coral fossils I’ve seen have been composed of calcite which is quite soft. Makes me question my ID. Perhaps horn corals from some locales have been replaced with silica which is much harder, and perhaps that’s what you’ve got.
  16. Yep. It’s an agate. Possibly from Brazil based on color, but it’s so common it could be from almost anywhere.
  17. That’s what I was thinking. Looks like they’ve been river worn too.
  18. Hard to tell from photos alone, but I’m going to guess it’s jasper.
  19. Well, judging by the regular shape of some of those, I’m going to guess they’re man made. Aside from that I’m clueless.
  20. I knew I should have checked this thread more frequently. It’s been close to 25 years since I first met Jim, and at least 15 since I last saw him. He was easily the kindest man I have ever met. He was more eager to teach than I was to learn, and I was extremely eager to learn. We rode to many hunts together, and I listened intently to all he could offer on those long drives. He loaned me his Tesoro Diablo on hunts so many times that many people thought it was mine. The plastic coffee cup he gave me to sort dirt with is one of my most prized possessions. I may have forgotten much of what he taught me, but I’ll never forget him. Thank you, Jim, for everything you shared with me. My life is far better just for having known you. Rest well, friend.
  21. That’s a good sized one! It oughta make some nice cabochons if that’s your thing. By the way, the matrix is most likely to be a rhyolite, which is most definitely igneous.
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