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Post by ywevis on May 27, 2014 10:49:23 GMT -5
You have your concentrate, how do you process in detail please. Like if your on a creek do you further classify? How do you get your gold free of black sands?
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Post by samburgin on May 27, 2014 13:49:20 GMT -5
I do very little clean-up in the field. I test continuously to make sure I stay in the gold, so it isn’t necessary to ever clean up in field, I try to spend as much time as I can generating concentrates.
The clean-up at home is simple. I run everything through a 6 foot cleanup sluice with 2 feet of ¾’ raised expanded metal, then 2 feet of ½” raised expanded, then 2 feet of 3/16” of raised expanded over miners moss. This gets 96++% of any gold you will likely ever encounter, according to the Clarkson studies.
I wet classify the cleanup sluice super cons into fractions:
2,4,12,20,30,50,70,100,120,170,200,240, 270, and 300 mesh.
I pan each fraction with a falcon clean-up plan.
For the -300 product, I save that up until I get enough to run through a daisy mat sluice with a 3/16’ expanded over moss section to see if I am losing values. Depending on what I am losing, I may use a miller table, or wait until I can throw it into the centrifuge. The centrifuge gets about 83% of everything down to 1200 mesh, but it is expensive to run. Even a great shaker table will only efficiently capture 150 mesh gold. An RP-4 is good to 100 mesh and fair to 150 mesh.
Blue bowls are notorious for missing gold!
I never panned behind a blue bowl that I didn’t find color.
Same with miller tables, you have to classify and run all the same size particles together. If you mix 100 mesh gangue and 200 mesh gold in the same slurry, you will lose gold.
Sam
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Post by loki258 on May 27, 2014 15:17:33 GMT -5
I turned my blue bowl into an automatic dog water dish.
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Post by MrTim4Gold on Jun 24, 2014 2:11:14 GMT -5
I don't bother with any clean up in the field. If I work different holes I will keep the dredge/hi-banker cons separate..head home..only classify with a kitchen strainer(came with Tom n Perry clean up kit)..setup my black tub, grab the dredge stand..drop my spare a52 sluice with deep V mat..500gpH 12v pump fight with water flow because I haven't built a better water introduction system (pvc with holes) Most of time I have to clean up my mat twice just to make sure I don't overload it..over cautious? ya maybe..lol then I just pan all the heavy black sands and dream of an easier final separation method! Oh and at some point I will pan the big rocks and see if I have a nugget! (nope) This setup is at the end of this video..some mods have been made since the making of this video..but viewer beware this setup is hilljacked!
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Post by uregold on Jun 24, 2014 5:39:03 GMT -5
i dont know about store bought blue bowls but the one i made myself gets about 98% fine gold. i dont use it alot because its too slow. takes 5 min to go through a teaspoon of black sand. i used to set up a mini sluice under it and the gold i found was so small you bout cant see it.
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Post by ridgeline on Jun 24, 2014 15:30:13 GMT -5
Keenes super concentrator enough said
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Post by ywevis on Jun 24, 2014 17:12:19 GMT -5
Keenes super concentrator enough said So out of your sluice on your dredge ya just dump it in there huh.. wow
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Post by ridgeline on Jun 24, 2014 19:29:56 GMT -5
Yes classify to 8 mesh then run it then take what comes out of sluice and run on miller table simple and hardly ever find any thing in tailings after the super concentrator . Anything if there was left after the concentrator im not worried about because i have tested many times
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Post by ywevis on Jun 24, 2014 19:40:08 GMT -5
Yes classify to 8 mesh then run it then take what comes out of sluice and run on miller table simple and hardly ever find any thing in tailings after the super concentrator . Anything if there was left after the concentrator im not worried about because i have tested many times Oh damn, see I knew it was more than just dumping it all into the clean up sluice!
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Post by ridgeline on Jun 24, 2014 20:02:46 GMT -5
Lol
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Post by cabarrusgold on Jun 25, 2014 19:04:24 GMT -5
Ok, I see now... do I need a miller table too or...? I use a Gold Cube for clean up but interested in what others use.
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Post by ridgeline on Jun 25, 2014 19:58:26 GMT -5
With a gold cube your still gonna need a miller table. But i prefer the super concentrator over the gold cube for its simplicity both need miller table
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Post by ywevis on Jun 25, 2014 21:22:40 GMT -5
keene super concentrator
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Post by victory on Jun 26, 2014 5:39:59 GMT -5
Love his panning technique in the last video. Anybody using the Angus McKirk predator for cleanup?
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Post by MrTim4Gold on Jun 27, 2014 8:39:10 GMT -5
I do wish I had that much gold to recover some time!!
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