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Everything posted by Haderly

  1. Air bubbles means it is not a meteorite. Looks to be vesicular basalt or coke slag. Any old railroads near where you found it?
  2. I've never researched how tube agates formed. I know some are formed like straws (stalagtites) but those don't change direction. The ones here are completely random in direction and constantly change direction. It would be similar to tubes left behind by shipworms but that area is all volcanic so I don't think their formation is biological. Perhaps they are Helictites but that is a pure guess. As for the good material being gone, it mostly is in the areas where everyone goes. If you are willing to walk and drive into the more remote areas, you can still find good material. Most people go
  3. I believe what you have there is a variety of nice Gneiss. Your previous post said it came from the Republic Mine which based on https://www.mindat.org/loc-19621.html the parent rocks are Gneiss and Amphibolite. I have cut and polished several pieces of Gneiss with great results. I prefer the small tight bands since they still show the structure when cut into cabs. .
  4. Does it have a brass look to it like the first picture? Based on the first picture I would guess it is pyrite. A good research resource is https://www.mindat.org/ You can go to the region or sometimes the actual quarry/mine and see what has been found there. Often they will even have pictures of actual rocks/minerals that have been found in that location. That website is also a great resource for finding new places to look.
  5. Some self collected local tube agates. Found in one small area by my friend and I.
  6. You will be fine here. The only people that get annoying are the ones that think they know everything and refuse to listen, learn and research. There are plenty of knowledge people here that are happy to help with questions.
  7. Been facing a few specimens of this material. It was collected over 50 years ago. I got a fair amount from the son of the guy that collected it. A few other people got some also but very little was ever collected.
  8. You have lot of good stuff to collect in your area with a little research.
  9. Then prairie agate would fit. If you find any Lake Superior agates you may hold off on polishing them. The LSA purest collectors like them more in their natural state. Some do an oil treatment to make the colors stand out without physically altering them.
  10. The middle one in the 7th picture looks like Llanite which comes from Texas. Looking closely yours is probably not Llanite but could be something similar in makeup.
  11. The striped one in the single photo looks similar to prairie agates. Really hard to tell from pictures especially without knowing the location. With small beach/river pebbles it is almost impossible to ID from pictures even knowing the location. It never hurts to start with a cheap tumbler and see if you enjoy polishing rocks. They will look better polished than dry and you won't be out a bunch of money if you decide that it is not something you want to do.
  12. Been to Opal Hill and it was a major pain for what you get. I have seen some nice stuff from there but what I found was not very good. I did have better luck searching in the outskirts of the mine. The best piece I found there came from the road as you start up the hill.
  13. That is truly a hard question and if you check around you will see a huge range in pricing. I like to mine and hate to sell so any excess I don’t keep I pass on to a friend to sell so I am not the best person to ask. In rough you will mostly see commercial grade being sold at around $30/lb. The price all depends on who is selling it and how good it really is. As for top grade it is mostly sold by the piece and the price is based on potential. Most top grade pieces are at least worked enough to show the potential in order to justify the cost. The best of the best pieces are almost always held
  14. A few surface finds but most of them are from hardrock mining in rhyolite. We did hit one potato patch where we were just digging them one after another out of soft dirt. That ended very quickly once we got down 12 inches to bedrock. All hand tools since it is remote and we have to pack everything in and out. Cabbing them rarely turns out very good. You have to get as much chalcedony off the fire layer to get the brightest color. Since it is a botryoidal cabbing tends to grind the top off the bubbles or leaves excess chalcedony. The best way is the carve them following the nature contours of t
  15. We find heaps of white, brown and red chalcedony right alongside the good fire agate. Some people think that if it comes from the same location then it all can be called fire agate. Fire agate is a defining characteristic and without fire it is just chalcedony regardless of the base color. Then you have the scammers that pray on peoples ignorance and sell all sorts of stuff under faults names.
  16. I figured I would add some pictures of a few fire agates that I mined for people that are not familiar with the material.
  17. It is not fire agate. I would bet on slag or obsidian. The rainbow is probably light being refracted through an internal fracture.
  18. could be epidote. I was reading a mineralogical report a while back and it stated that epidote and chlorite were found together in the Gold Basin area. The link to the report if you need some nap time is https://pubs.usgs.gov/pp/1361/report.pdf
  19. I believe Gold Basin has some chlorite minerals...maybe Clinochlore but I am not that knowledgeable on minerals.
  20. looks like flint from the UK. http://www.ancientcraft.co.uk/Flintknapping/Flintknapping.html
  21. Two that come to mind is oolite limestone or variolite. I am not familiar with that area so both guesses could be wrong. Can you let if the dark spot are crystals...any transparency to them?
  22. I've been wanting to add one to my collection for a long time. Even the lower quality ones can be very expensive.
  23. Tom you think the smell of the rendering plant was bad at Manzanita. I did some engineering work for them and had to do a site walk. It was so bad I almost did not get through it. The survey crew was praying that we did not need to send them back there. Unfortunately I only managed to get to Manzanita a couple times before it closed. We have gone to Canyon Speedway quite a bit but have not been there lately.
  24. Wow you did very well on that trip. Are you going to be selling any?
  25. That is a pretty nice geode. There are a few geode locations in that area but yours is much nice than a lot that I have seen.
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