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  • Geodes

    Have any geodes been found in Alaska? I've been looking for information, but all I can find is for every other state that has volcanoes. Have any of you ever found any while rock hunting/prospecting and if so where?
    Chris Willhoite

  • #2
    Yukon

    Heard of a friend who went up the Yukon via several boats for moose, came back with 500+ lbs of rocks, geodes in theory. Never saw them but his wife was passing on the story of his hunting success.

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    • #3
      No Name Creek

      A friend of mine has a slice off of a large one he drug out of the Talkeetna Range while sheep hunting. It has to be as large as a basketball. I will get more detailed information from him and get back to you.

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      • #4
        I've found them...

        in a creek that empties into Totem Bay on Kupreanof Is. Some the size of basketballs! Pretty cool once I figured out what they where.

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        • #5
          Yes, actually found some in Denali while doing some mapping. Combination of quartz and calcite. Beautiful euhedral crystals too, pink calcite. Found it in some talus below a bunch of volcanics.

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          • #6
            Those in Denali will probably be the eaisest for me to get to. I might try the Talkeetna Range if I can get out there as well. Thank you.
            Chris Willhoite

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            • #7
              Can someone here post a pic of these geodes,so I no what the heck they look like.Thanks...

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              • #8
                sheep mountain

                We picked up an Alaska mineral prospecting guide at one of the rock stores here in Anchorage and it indicates that there are geodes at Sheep Mountain. My 7 year old in total fascinated with minerals and geodes in particular and would love to find some.

                Jay

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                • #9
                  Originally posted by danthedewman1 View Post
                  Can someone here post a pic of these geodes,so I no what the heck they look like.Thanks...
                  They don't look like much on the outside. Roughly spherical. You've gotta crack them open before you know they are anything special. Start cracking rocks. If you have to take more than 2 or 3 good whacks it's probably not a geode.

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                  • #10
                    A drop saw or a good masonry saw is better to cut them open with. That way you get an even cut that is easier to polish and it preserves more of the geode.

                    http://en.wikipedia.org/wiki/Geode

                    Some decent pictures of cut geodes here.
                    Chris Willhoite

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                    • #11
                      I'm a geologist and not a rock collector. I tend to smash every cool rock I come across. A saw would definitely be a better idea for a nicer looking geodes.

                      Warning: If you have a rock you want identified and not smashed, tell the geologist not to smash it before you give it to them. (It's half the fun)

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                      • #12
                        And if you're going to smash rocks, wear eye protection!
                        Those that are successful in Alaska are those who are flexible, and allow the reality of life in Alaska to shape their dreams, vs. trying to force their dreams on the reality of Alaska.

                        If you have a tenuous grasp of reality, Alaska is not for you.

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                        • #13
                          Bought an amethyst geodes about 4 inches diameter from the rock store for my Sonís birthday. Picked up a $15.00 4.5 inch masonry blade for my side arm grinder and cut it in half, turned out really nice.

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                          • #14
                            Got a name for that creek

                            Ok, so the story goes that my friend and his hunting partner flew up the Talkeetna River to the Yellow Jacket river, then up the Yellow Jacket until they found glacial moraines they landed on. They hiked up the hillside to 1000' elevation from where they started, and found about 30 geodes and also some jasper. They did find the large geode, it weighed in at 61.2 pounds. That one they did not carry any more than necessary, they pretty much rolled it down to where the plane had landed. He had a corner sliced off at a rock shop, the corner was the diameter of a dinner plate, really nice after it was polished.

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                            • #15
                              I heard quite a few years back that if you were to find a geode with water in it, you could sell it for BIG cash. Scientists would love to analyze the water, as it could be millions of years old. But of course, you don't know if they have water until you break them open. I haven't done any research on this topic, but I wonder what % of geodes have had water in them.
                              "Wine can of their wits the wise beguile, Make the sage frolic, and the serious smile." - Homer, Odyssey

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