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Everything posted by d_day

  1. Interesting. Clay or soapstone perhaps?
  2. I don’t know how accurate this is. There was indeed a Cherokee mine, and many diamonds were found there, but I’ve not been able to verify the rest of the story. Interesting read nonetheless. http://thetombstonenews.com/the-unsolved-mystery-of-californias-idle-diamond-mine-p1576-84.htm
  3. Just looks like a chunk of brown jasper with an agate seam to me.
  4. Looks like quartz to me. Easy test. Calcite has a hardness of 3, Whereas quartz has a hardness off 7. You can scratch calcite with a nail, but not quartz.
  5. A few notes on Kambaba “jasper.” It’s not actually a jasper, nor is it a stromatolite. It’s actually rhyolite. I also just remembered there is a very similar looking stone to what you have there. It was being sold by a few of the vendors at Quartzsite a few years ago. I think they were calling it dragon stone, but I don’t remember for certain. It was quite soft.
  6. Second is certainly quartz. I’d wager the first is serpentine. It does not have the appearance of a stromatolite.
  7. Those marks on the bottom are usually an indicator that the item is cast. Next time you have doubts, use as hot pin or needle instead of an open flame.
  8. I’m 99.99% slag. Outside chance it’s vesicular basalt. Either way It’s nothing special.
  9. My money is on some variety of chalcedony (agate, jasper, chert, etc). The one photo looks somewhat like common opal, but it doesn’t in the other photos.
  10. Looks like banded calcite to me.
  11. Very nice! Edited to add: keep posting! I love seeing what others find. I don’t post much These days because I don’t get out like I used to and my club’s shop is closed due to covid, but if things ever get back to something resembling normal I’ll Be back to posting up stuff I find and stuff I make.
  12. Unfortunately, identifying rocks through photos alone is extremely difficult. There are times where a proper ID is obvious, but that’s extremely rare. that being said, it may well be rhyolite as was suggested earlier. it almost looks like the stuff they give you for fire pits or propane barbecues.
  13. Get your eyes checked Bob! That’s a coffee can!
  14. I’m on the sheen obsidian boat.
  15. No problem. Just glad it was an easy one. Most stuff is outer hard to id from photos alone.
  16. Green calcite from Mexico. This material is often mistakenly called onyx, but onyx is a type of agate with alternating black and white layers.
  17. They would, if it were sedimentary. Gneiss would not be, but schist might be. Most schists are metamorphosed sedimentary rocks, but can sometimes be metamorphosed igneous rocks. When there are seasonal layers in sedimentary rocks, they are called varves.
  18. Wait, you think posting a screenshot from Wikipedia, which says that lunar rocks are igneous, somehow proves that lunar rocks are sedimentary? You are either completely delusional, or you’re trolling us. I don’t think you’re trolling us. I am genuinely concerned for your mental health. Please seek professional help immediately.
  19. Best bet would be to find a rock club near you. Not only will they have lots of members willing to share their knowledge with you, most have a shop with all the lapidary equipment you need.
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