What do you do with black sands & worked cons?

[nickmarch]

Hello All!

I will be moving to NC just north of Charlotte soon.

Being that I go after the flour gold with my vortex concentrator and do get a lot of fine gold I am thinking about investing in a shaking table http://msi-mining.com/gold/gold-shaking-tables/ to speed up separation and get the -300 gold that cant be seen with 20/20 vision.

About 50 microns is the point where gold becomes invisible to the naked eye. 50 microns is larger than 300 mesh. The shaking table gets gold -300 to -400 mesh. Studies have shown 1 to 3% gold remaining in worked cons. A 5 gallon bucket of fine cons would weight about 100 pounds. 1% would be a pound of invisible gold! I myself would have to see that to believe it but would be happy to get a hell of a lot less!

The table is expensive! I am curious as to how many would be interested in running their worked cons thru the table and what % of the recovered gold you would be willing to give up. You bring the cons to me and watch the entire process.

Not that I would want to get into having buckets shipped for obvious trust reasons but a 5 gallon bucket weighing 100 pounds, shipped 500 miles would cost about $85.

[Hefty1]

Just how do you see a pound of invisible gold if the pcs are invisible to the naked eye


Hefty

[Old Radio Tech]

Contrast will help. Try a pair of 5x glasses from your local pharmacy and add jewelers/watchmakers lenses. That will boost you to 20+ power. But at 20 power you'll need to be 1/8-1/4" away. Also, it's hard to see a single fish under water but a school stands out.

[russau]

[quote=Hefty1 ]
Just how do you see a pound of invisible gold if the pcs are invisible to the naked eye?


thats EZ! Simply squint real hard! works for me!

[Klondikeike]

Hey nickmarch,

Klondike here...

There is a unit I have used in the recent past and will be using in my newest commercial operation. I know the inventor very well..nearly on each other Christmas card list..lol

It is called the Desert Exorcist.... One very, very, very important step is you material or fine cons MUST be very very very dry..

I use a really clean, portable electric cement mixer...with a propane torch heating the bottom as it turns and I can dry large quantities of black sands or fine cons with it.. plus the rolling around in the mixer tub... helps scrub the material ...

Then run it through the Exorcist at te rate of up to 700 pounds per hour.. and you will remove all or extremely near all the fine free milling gold in your cons...

If you can't find one.. PM me and I'll get you in touch with the manufacturer...

Hope that helps...

Klondike...

[Hefty1]

[quote=russau ]

Just how do you see a pound of invisible gold if the pcs are invisible to the naked eye?


thats EZ! Simply squint real hard! works for me!

If I squint real hard......might break something.....my wife lol rotflol

[jmoller99]

http://goldexorcist.com/ - looks interesting to me. Glad to know it works.

[2cmorau]

what makes this exorcist better then a standard dry washer, is it the screen?
i would much rather use a shaker table then a dry washer

[Klondikeike]

Hey 2cmorau....

It isn't actually a dry washer..however, it is a way of dry washing to separate the gold in your cons ...instead of water...and with a higher volume too...

It can be used as a standard dry washer..but your material must be very...very...very dry..no moister at all...

Not sure of the technology....It does use some interested science..such as magnetism.. and micro volt separation and other things....even though the inventor is a good friend of mine.. he doesn't disclose much to me about how it works...

All I can say is that I have used it and it works extremely well in separating your gold from your cons..either cons from a sluice, dredge or drywasher..it works great...

Klondike...

[2cmorau]

Thanks Ike
I agree with the dry, dry ,dry part would run the tailing pile two three times through the washer Keene 140
mostly out in the Wickenburg area, but i always bring home the cons
Never thought of using a dry washer for final clean up, always had a shaker table and an impact mill
i can see some advantage with this unit, weight for one thing, seems a little more compact
will have to see one maybe at a gold show this year
then again, i may just have to throw the dredge in the water this summer and take on California and DFG

[Klondikeike]

Hey 2cmorau,

I you're around the Wickenburg area.. stop in the "Miner's Creek" prospecting shop.. He has one in his inventory.. he claims to know the inventor personally..yet I am very good personal friends with the inventor and Mr. Coen, the inventor, doesn't know the shop the owner...I don't think he knows much about it... but he does have one in his inventory...

Klondike...

[2cmorau]

Ike
LOL,
i think it was in 08, myself and a couple of buddies made the almost 2 hour drive to town for supplies, you know the typical ice, beer, whiskey,
don't remember the name of the restaurant on the east side of town, but the waitress made the comment and i guess we looked the part after seven days out, she mention it to us in our conversations, we made the visit, picked up a UV light
anyway glad to hear he is still in business

[Hoser John]

Modern drywashers work on a number of principals invented by PESCO products in the late 70's and now a industry standard for excellence in recovery. Constant flow is imperative and leaf blower/briggs work just fine. Then you add in the offset weights suspended below the recovery riffles to produce the offset elliptical vibration that turns the sands to a watery like flow,then add in good old electrostatic charge by metal screens and all actions create and modify and VIOLA all the science comes together and you got a gold gobbling machine-tons a au 2 u 2 -John

[NGE]

What is the "Green Monster" that they are using on the show "gold rush!" in Alaska?.......MM