I have some quartz with yellow in them I need to hit with the detector .
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Helped my son clear a trail so we could ride the quads closer to an old mine dump so he could metal detect. It's a lot easier to haul rocks on the quads than our backs this two-pound rock had around a 1/4 ounce of gold. Broken with a single jack then ran through the chain mill then panned to recover the free gold. Just a random rock that the detector toned out on the old timers didn't have the technology to recover this without milling every rock.
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These concentrates are what washed through a number 30 screen then a ribbed sluice box next the blue bowl concentrator. Then panned again the micro gold is so fine mercury is used to collect I will build a retort or buy one to recover the mercury to keep this prosses environmentally friendly. Look like the two-pound rock will give up a half ounce of gold total hopefully lol. Clean the mercury off and you have some nice gold. That pile of grey mud is mercury and gold.
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I smelted some more gold ore yesterday not sure what's smelting drives out it takes a couple runs to cleanup. You can see all the iron sulfide? in the bottom of the cupel it cracked also I tried using it twice may be some gold in the cracks? I save all the used cupels and smash and grind to retrieve any precious metals nice button 15.5 grams all from the new spot my son has been metal detecting. So, 33 grams for last week and I still have all the concentrates to cleanup waiting on a pump. My son left me with a pile of rocks lol while he's prospecting in Nevada.
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We have a number of different metal detectors, but my son has his Minelab Nox 800 dialed in on gold in trashy areas like mine dumps and placer diggings the right tool for the job. If you run the Equinox 800 in Park 2, recovery speed 3-4, sensitivity 21-22, and iron bias second setting at 9, you can detect incredibly small gold. Gold 1 and 2 are extremely noisy- almost like a Whites GMT and it's easy to miss small gold/specimens. With Park 2 you can get a clear signal response and ignore iron giving you way better odds in a trashy mine dump area. This is how Seth has been finding an incredibly large amount of gold in trashy mine dumps and placer workings. This photo shows how small some of the gold is from his recent trip to Nevada.
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A couple days ago my son was out prospecting with his Minelab SDC 2300 spotted an open cut under the brush. After clearing off some forest duff he found this specimen of gold vein this will get some light cleaning and kept as a specimen maybe 227 grams of gold and rock. Crazy right I've been walking past these piles for over forty years. I was out burning brush when he drove by on a quad it was only 30 minutes, and he had this one. The small picker in the bottom of the pan is more the normal size finds at 2-grams.
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