Last Post 28 Dec 2015 08:58 AM by  WALTER EASON
Floating Gold?
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Benjamin Crain
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08 Jul 2015 03:18 PM

    I worked a claim down on the San Miguel River with my wife and we brought a bucket of river sands home to work with. The sand bar we were digging into was a natural eddy in the curve of a river. The first thing I noticed was that the sand was like concrete mix, very mineral rich and heavy material.

    So we bring it home and panning and I am not finding anything, but I am having a problem with the dried sands dirtying up my panning troth. I add a little bit of Special D (Dawn dish soap) like most other panners so I decided to take the scoop of sand and wash it with my fingers 3-4 times until the water stayed mostly clear, and that is when the gold started showing up, but not in the bottom of my pan, but instead on the top of the sand.

    What I can figure is that I was washing away the gold because the sands in the material were so mineral rich and fine they form a basic concrete, and in this scenario the gold rises to the surface instead of sinking to the bottom. I can only imagine how much gold myself and other panners have thrown out because none of us are expecting it to rise to the top.

    I found one match head picker that literally hovers in a vial mid bottle, most of the rest are some nice sized flakes, but none of them will sink through the sands.

    I have an idea for a solution, and would like to ask if anybody else has had this problem;

    Because the sands were classified through a 1/8th" classifier there is almost no gravel in the mix, I am thinking that a larger classifier will add enough gravel to the pan that when it is shaken it will create water gaps in the sand and allow the gold to sink. This compared to now when I shake the pan I form a hard compacted concrete body.

    Please also understand this is not material that has been through a sluice or a dredge, this is just straight river sand classified to 1/8th".

    Joseph Loyd
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    08 Jul 2015 08:29 PM
    Never seen anything of that sort.Maybe some one else has .But it does sound like mika .It does come in clumps as well .
    Joseph Loyd
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    08 Jul 2015 08:34 PM
    Oh one thing I forgot .Put the pan in sunlite and then use your hand as a shade and see if the stuff gets dark ,and dose not keep looking like bright gold.Just something to try.
    Benjamin Crain
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    10 Jul 2015 06:25 PM
    I only pan when I have the right light, and the orange glow of gold is much different than Mika. You can lose gold easily when you are dealing with a bright back drop and you are in the shade. This was something I have never dealt with, the gold literally came to the surface instead of sinking.

    Most of the gold I recovered was very thin flood gold, but even a nice picker I grabbed off the surface. It has changed the way I think of panning, there are two parts of it. You have some gold that is like a pancake and thin that cannot penetrate the heavier materials below but also the heavier gold that sinks. But in this case the sand was so dense with minerals the majority rose to the surface. I should also explain my technique for doing this.

    I would take a scoop of sand about 2 cups and drop it into my pan. I would let water flow into it from my tub and then take my fingers and rub back and forth to try to wash out all the mud. Once it was really dirty I would pour out the water and repeat until the sand was no longer making the water cloudy, and that is when I would find the gold on the surface. After I picked off the flakes I would then pan as normal and find pieces mid way through the material. No matter how hard I shook the pan I could barely get anything to sink, and I am no amateur to panning.

    The gold I collect gets washed in Muriatic Acid so anything I am wrong about will be dissolved, almost everything I found remained in my cleanup.
    DENNIS JANKA
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    11 Jul 2015 09:00 AM
    BEN and all you prospectors... PLEASE DO NOT USE DAWN DISH SOAP OR ANY OTHER SOAP............ THE SOAP IS SENTED TO MAKE IT SMELL NICE.. WHAT MAKE THE STUFF SMELL PERFUME.... PERFUME IS A OIL BASE PRODUCT.. SO OIL MAKES YOUR GOLD FLOAT......... PLEASE USE ONLY THESE TWO THINGS JET DRY OR CLAY BE GONE.. ANY DISH WASHER DRYING AGENT WILL WORK JET DRY IS A PRODUCT NAME..
    CLAY BE GONE WILL SETTLE THE DIRTY WATER TO HELP KEEP YOUR RECIRCULATING TUB WATER CLEANER...
    I HAVE SEEN A LOT OF FINE, FLAKE , AND SMALL PICKERS BE LOST BECAUSE OF DAWN.

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    Jeff Martin
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    26 Dec 2015 08:54 PM

    Have to agree with the information given.  Dish soap is not only a surfactant but has many other chemicals not so friendly for our hobby.  Jet dry is a surfactant.  Weakens the water surface tension so drops can't stay formed and gives our dishes a sparking clean appearance.  In our gold processing surfactant prevents the gold from floating, due to the water surface is weekend and the gold sinks. 

    Clay be Gone is a Flocculants or binding agents.  These are used to sink or bind to the clay.  Flocculants have an affinity for clays and sinks them to the bottom to give us clearer water. 

    Both of the above products have different functions and properties but both may be necessary to improve the gold recovery process.  Trial and error, lots of practice.  Key is add slowly and watch for best results.  After a time you'll get good at estimating what and how much is needed.

    Good Luck,

    Jeff

    WALTER EASON
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    28 Dec 2015 08:58 AM
    If you have problems with finding non-scented surfactants you could try herbicide surfactants. I think you want the non-ionic type. Clay be gone actually binds and drops claim out and is a slightly different type of adjuvant. It is a good aid in getting the clay to drop out but if you use to much it can bind up the fine gold in the clay and in dropping it out bound in the clay and hinder recovery. Clay be gone is a great product but follow directions in gold recovery.
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