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Everything posted by d_day

  1. Okay, those pics are far better than the first, but they’re still blurry. I think though, that I can tell a little something about it now. Looks like you’ve got a piece of something opaque like basalt, with a small chalcedony inclusion.
  2. Vitreous carbon has a Mohs hardness of 7, which means it doesn’t leave a streak. OP’s example leaves a black streak, so it’s not vitreous carbon.
  3. It’s really hard to tell from pictures alone, but the first looks like either marble or quartzite. The second I’m going to guess is a pegmatite, because it looks like it’s got a decent sized piece of schorl in it.
  4. I’m going to guess that this is some sort of industrial byproduct.
  5. Bits of it are. This is what’s known as pegmatite. It’s a course grained granite. It’s composed of quartz, feldspar, and mica. It sometimes contains beryls and/or tourmalines.
  6. Yep. A friend worked closely with Erik Rintamaki (the discoverer) and wrote up a paper for some journal. I’ll have to see if I can find it and post it here.
  7. Do whatever makes you happy with it.
  8. Yeah, looks like a mess of shell fossils to me too. I thought maybe you had a bit of crinoid in the one, but looking closer I think it’s some shells that just happened to line up.
  9. I think everything above the pet wood looks like quartzite.
  10. A breccia is a rock that’s been broken and “healed” by another mineral. Lots of jaspers exhibit this.
  11. I love that one. Sadly, it was a small piece, and the only one I found with that pattern. I really wish I found more.
  12. It’s a breccia of some sort, infilled with what appears to be calcite.
  13. Having seen the green one in sun, I now think it’s a quartzite, which is a metamorphosed quartz sandstone. It does look kind of jade like, but the sharps edges aren’t usually seen on jade float.
  14. Here are some jasper pics, most from locations I mentioned. The first four are pics I sourced from google. The last two are pieces I collected and cut myself. 1. Bruneau Jasper 2. Morrisonite Jasper 3. Imperial Jasper 4. Willow Creek Jasper 5. Top Secret Jasper 6. Lavic Jasper
  15. 1. Pieces that show interesting colors and patterns, and can be fashioned into jewelry. 2. Jasper is extremely common, and there are many examples to be seen online. What constitutes quality is up to the person buying or collecting it. 3. In my opinion, the jaspers that take the best polish are the so called “porcelain jaspers (Bruneau, Morrisonite, Imperial, etc),” but all jaspers take an excellent polish, though those with lots of other minerals (hematite, etc) running through them can be difficult to polish well. 4. I have and do. I even have discovered a variety I call “top secret” jasper, because it’s hard to find and I don’t share its location. 5. As bedrock bob said, the best one is the one your customer wants. Either can be used to create stunning jewelry pieces.
  16. 1. Depends on the jasper. 2. What do you mean by worth it? If you’re looking to collect and sell it, then you’ve got to be careful. Collecting from public lands to sell is against the law. In order to do that you have to stake a claim and pay all the fees. If you’re just looking to collect for your own collection, then how much do you really need? 3. Beauty is in the eye of the beholder. 4. Beauty is in the eye of the beholder. 5. Depends on what you plan on doing with them. If you’re tumbling, just about any size will work. If you’re cutting to make cabs, they should be at at least a couple inches in diameter. 6. Again, beauty is in the eye of the beholder.
  17. That’s one of those that’s hard to ID from pics. If I had to guess based on the pics alone, I’d say granite or basalt. You may well be right.
  18. Mule Canyon palm is getting harder to find by the day. It used to be so common, and the pieces so large out there that my uncle would break them up with dynamite. There were whole trees preserved before all the collectors.
  19. Oh man. I thought you guys were calling the rocks in pic #10 palm! Glad I went back and counted! Both of those are palm fiber, which is what the trunk of the palm is called. The roots look very different from that. I don’t have any pics to show you at the moment though.
  20. I always try to stop there when I’m in San Diego. I love the place. If you go, be careful. The drinks are strong and the food expensive.
  21. This is the bar at the Bali Hai restaurant in San Diego. It’s banded calcite which been cut and polished, and is nicely backlit. It’s stunning in person.
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