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Lunk

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Lunk last won the day on March 7 2014

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  1. I hope you catch that big space fish; good luck!
  2. Must have been small filings from the file adhering to the surface; you may want to clean the surface and then look at it again under magnification, as granite will never contain metal flakes.
  3. Contact Information Daffy, you can email some photos and a link to this forum thread to: Alan E. Rubin aerubin@ucla.edu Institute of Geophysics and Planetary Physics University of California Los Angeles, CA 90095-1567 Telephone 310-825-3202 FAX 310-206-3051 Here's a link to his web page: http://cosmochemists.igpp.ucla.edu/Rubin.html Good luck, and please keep us updated here.
  4. While that is generally true, there are always exceptions; for example, this 98% fusion crusted, 120 gram Tissint shergottite achondrite individual, which shows a remarkably rough and uneven surface:
  5. Okay Daffy, the second sample appears to have the same composition as the first one. At this point, I would go back to the area where these stones were found, collect a few of the native stones and break them open with a hammer to compare their interiors; please wear gloves and eye protection...you can cover them with a rag or towel before striking them to prevent the fragments from flying off. What we're trying to do here is rule out the possibility that your finds are simply native terrestrial rocks that have acquired a dark mineral coating. Isn't science fun?😄
  6. Yes, please post pics of the other, similar stone and file a window on it when you get a chance.
  7. The presence of metal flakes is a real good sign, although I can't make them out in your photos. The filed window reveals an interior that is composed of coarse, angular mineral grains, with no chondrules, suggestive of an achondrite. Before proceeding to the next step, which would be to email some clear, high quality photos to an accredited meteorite lab to see if they would be interested in examining your find, can you give us any specifics on the environment and circumstances in which your specimen was found...was it in a desert region? If so, are there any desert varnished rocks in the area? What made this particular rock stand out to you as being different from the surroundings? Was it found with a metal detector, or did you spot it visually?
  8. That looks very promising, Daffy. Can you file the exposed interior area shown in your first photo and then sand it smooth to see if any bright, silvery nickel iron flecks are visible? They should look similar to the pic below...perhaps not as many flecks, since your sample is only slightly attracted to a magnet:
  9. I’m in Q now, Dave. There’s a monthly QMDC club coin hunt on Saturday I’ll be attending.
  10. All my finds were buried, with the 75 g stone being the deepest at 8".
  11. Thanks Mike! The name’s Keith, actually; I remember running into you out there a couple years ago in the subdivision on the north side.
  12. Thanks Frank. Actually someone hooked up with Fred before I could, so maybe next time.
  13. Got out to Franconia early this week. My main objective of course was to score some nice space rocks, but I also wanted to try out White’s new Goldmaster 24k VLF unit to see how well its proprietary XGB automatic ground tracking would handle the extreme variable ground in the north half of the strewn field. Anyone who’s searched this area with a VLF detector knows how tedious it can be dealing with the endless volcanic hot rocks, and while the 24k handled the ground matrix extremely well and running a low sensitivity eleminated a lot of the hot rocks, there still remained plenty of them to deal with. Although I did find one half-gram iron with the 24k, with all the hot rocks it was hitting I just couldn’t cover enough ground to increase my odds of making a good find. As many of us detector operators know, in hot rock hell pulse-induction and zero-voltage transmission technologies are king. So I put away the VLF and brought out the Minelab GPZ 7000 equipped with the 19” coil for maximum ground coverage...time to get serious! With a quick adjustment I was able to ignore all but the largest and most insidious hot rocks and cover a ton of ground, netting me several small irons and 2 stones at 27 grams and 75 grams. But the best part was just enjoying the peaceful serenity while roaming the wide open spaces of the Franconia strewn field, and even spotting a wild burro.
  14. Fred, I’ll be available on the 10th for a hunt if you want to PM me for details.
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