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geowizard
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Geowizard's TOP TWENTY! ( 16:39:40 MonFeb 27 2017 )

Members of the Forum,

Anybody else gettin' the itch to go GOLD mining?

I'm ready! :smile:

In preparation for the coming season, here's a list of the TOP TWENTY gold catchers on the market. They aren't in any order and there's probably a few that need to be added!

Please note, I don't own any stock or have any commercial affiliation with any of these companies. This listing doesn't represent a product endorsement.

Please feel free to interject comments or personal experiences!

#1

The Popandsons Sluice appeared here on this Forum and received lots of discussion.

You can search their work using the search engine above.
https://www.youtube.com/watch?v=3NVHIV5lv9E

- Geowizard
[2 edits; Last edit by geowizard at 16:51:40 Mon Feb 27 2017]

  
geowizard
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Re: Geowizard's TOP TWENTY! ( 16:55:54 MonFeb 27 2017 )

Geowizard's TOP TWENTY:

#2

The Cleangold Products sluice is a truly NOVEL concept and is supported by US Patent. This sluice can recover very fine gold. You can learn more at:

http://www.cleangold.com/cleangold/home.html

- Geowizard


  
geowizard
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Re: Geowizard's TOP TWENTY! ( 17:00:08 MonFeb 27 2017 )

Geowizard's TOP TWENTY:

#3

The Le Trap (Bank Robber) Sluice is another very NOVEL sluice design that has appeared frequently here on the Forum!

Available at www.blackcatmining.com It is often sold out due to popular demand!

It is a simple, one piece, lightweight, reliable sluice.

- Geowizard
[1 edits; Last edit by geowizard at 17:00:51 Mon Feb 27 2017]

  
geowizard
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Re: Geowizard's TOP TWENTY! ( 17:24:07 MonFeb 27 2017 )

Geowizard's TOP TWENTY:

#4

The Gold Buddy High banker.

I had a chance to try one of these out. It's a neat high banker that uses a 12 volt pump and weighs about 14 pounds!

It meets all of the requirements of portability, performance and also being light weight.

You can see the Gold Buddy at:

http://www.goldfeverprospecting.com/goldbuddy.html

- Geowizard


  
geowizard
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Re: Geowizard's TOP TWENTY! ( 17:32:59 MonFeb 27 2017 )

Geowizard's TOP TWENTY:

#5

Extrac-Tec Heavy Particle Concentrator;

For the miner with a more ambitious budget, this machine will catch gold down to 50 microns! There are four or five models. These can also be shipped in shipping containers to Nome or anywhere else in the world!

Take a look: http://www.extrac-tec.com/

- Geowizard

  
geowizard
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Re: Geowizard's TOP TWENTY! ( 19:24:19 MonFeb 27 2017 )

Geowizard's TOP TWENTY:

#6

Micro Sluice Jr. & Micro Sluice 2;

Here's two more to take a look at while you're browsing Gold Fever Prospecting. They are designed by John McCann. more examples of low cost, light weight GOLD prospecting tools! :smile:

www.goldfeverprospecting.com

- Geowizard

  
peluk
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Re: Geowizard's TOP TWENTY! ( 01:59:42 WedMar 1 2017 )

geowizard,I would like to comment on #2 of your "Top 20",the Cleangold product line. Back a few years ago,Steve Garner of "Popandson" (a contributor to the Forum) and I were on the beach at Nome doing some test work on beach gold recovery.
At some point,two representatives from "Cleangold" ,who were promoting the products, came by. I don't know if we had been invited to participate in their demonstration or whether they had been so badly befuddled by the outcome,that they weren't aware we were there beside them.

I was aware of the principle involved in the design and the quest to protect that secrecy when I came over to the place where they were feeding material into the sluice. Steve was with me at that point. As water coursed down the sluice which was bedded with their( at that point perhaps not solidly patented)special mats....material was added to the flow and the demo began.

The mats resemble the magnetic mats that have advertisements on them and which you might find attached to a refrigerator. These are different in as much as they do not have any ads attached. So one side is the side that attracts the magnetite from out of the flow and the
other side is just stuck to the sluice by the same adhesive that would usually have a thin piece of plastic film and an ad printed on it.

As the magnetite collected it formed thin, fuzzy, black, parallel lines across the flow. These were meant to stop fine gold. They did to some degree but it was just a temporary pause and then the gold went on its way.Some got stuck in the buildup but not much and we watched small flakes just glide right over the lines. They did too.The woman member of the team may have been an investor and she was clearly disappointed and she turned away. The man held on briefly out of stubbornness and Steve and I departed out of
kindness. Our departure was accompanied by some
comment like "Yup,it's hard to catch that stuff."

Thinking back I vaguely remember a local made a similar sluice just to demonstrate the simplicity of attaching magnetic mat to an aluminum slide. He was admonished that he was infringing on a patent that was or wasn't and nobody really gave it much more thought on the beach.

As far as unusual and very efficient sluice designs go,the LeTrap is a world apart from the "Cleangold Sluice". Its first and most remarkable feature in comparison to the Cleangold is that it works.




  
geowizard
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Re: Geowizard's TOP TWENTY! ( 13:53:49 WedMar 1 2017 )

peluk,

Success in using the cleangold sluice is based on careful CONTROL of size of feed, rate of feed and water velocity.

The magnetic mat is not like a conventional sluice in the sense that the riffles are "fuzzy". The ability of lines of magnetically retained particles of blacksand to retain fine gold requires the gold to be very fine. Yes, flakes and nuggets will roll right over the very small riffles. Yes, the gold will blow through the sluice if the flow is too great.

If oversize particles roll through the mat - the oversize will release the gold that is retained by the blacksand. Blacksand can best be defined as a "fuzzy" riffle.

Drop is another factor to consider in the setup. Since gravity is the force that holds the gold in the sluice, the greater the drop, the greater the force of gravity in moving the gold out of the box.

Keeping the flow sufficient to clear the box and allow the gold to settle is critical. :smile:

- Geowizard

  
geowizard
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Re: Geowizard's TOP TWENTY! ( 15:30:49 ThuMar 2 2017 )

peluk,

By the way;

I run a sign biz on the side. :smile:

Part of that business is making magnetic signs for vehicles.

A few months ago, I noticed spare pieces of magnetic material wouldn't stack evenly. Upon closer inspection, I noticed the pieces "hopped" into a preferable magnetic alignment. I have a 5 gallon bucket of dry black sand. I took a piece of the magnetic sheeting and applied the black sand. Now, after several months of playing with this concept, I have grown a greater appreciation for the concept. The QUALITY of black sand is important. It requires attention to the smallest details of selection of high grade magnetite sand! :smile:

- Geowizard

  
peluk
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Re: Geowizard's TOP TWENTY! ( 18:08:19 ThuMar 2 2017 )

All black sand is not magnetic is what you're saying I think. I read your comeback on the magnetic sheeting. You can buy it in rolls and I did buy a roll back when I was looking at the sheeting as a possible mining tool....or rather,a cleanup tool.

There was something else that led me to drop the concept. I think the mat lost its magnetic power over time or it cracked. I can't remember. I worked with it enough to know that I can pan far faster than that mat can select gold out of the flow. I know the term "flow" puts you off so I'll just use "stream". I know it is a delicate recovery process but I still maintain it is a hit and miss depending only on the obstruction presented by the small lines of collected material. It is too slow. I would compare it to the Blue Bowl but the Blue Bowl works on a different principle. The Blue Bowl also loses 20% of the gold fed to it into the bucket beneath. I think that has to do with the shape of the gold and it will lose it again the second time it is run because those shapes are flat and coast up and out ....just like in a jig recovery unit. The Blue Bowl is a fascinating tool in my estimation. It demonstrates how gold collects in a current for one thing. It also demonstrates how gold shape plays into the recovery process.

  
JOE_S_INDY
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Re: Geowizard's TOP TWENTY! ( 20:33:55 ThuMar 2 2017 )

Chick,

There are three cases with "Black Sands" and they make perfect sense in a geological context.

The most magnetic of the "Black Sands" is the Ironoxide mineral Magnetite. That is what that CleanGold's kinda' 'fridge type, magnetic sign type, material uses to make it's corduroy looking 'mini riffles'. Not a strong magnetic bond like an AlNiCo or the much stronger Neodymium magnets would posses, but it does form those delicate mini riffles that Platt uses in his equipment. I'll defer to your observations as to if they are sufficient or not to catch small sized Gold pieces, realizing nothing in every piece of equipment is ever 100% effective all the time.

Next is the black Ironoxide mineral Hematite which is only slightly magnetic. From my experiences, 'Fridge style or type magnetic material would be hard pressed to retain any of that mineral and it would probably just wash out of any system relying on light magnetic retention. Stronger magnets, like a Neodymium N-52 magnet would certainly retain all Magnetite and most of the Hematite - but then the magnetic fields would be building dams and not mini riffles.

Finally there are some powdered black rocks and such that are not, in the least magnetic. Powdered Shale, black clay or even coal dust come to mind while there must be others as well.

All the best, Chick, your words of wisdom are a rock steady mainstay here.

Joe







---
Wiser Mining Through Endless Personal Mistakes
 
 
WmA
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Re: Geowizard's TOP TWENTY! ( 15:21:09 FriMar 3 2017 )

Well thought I'd stop in and stir the pot a bit.

I use a cleangold sluice and I find it satisfactory on the Oregon coast. However our beach gold is much different than that of Nome beach gold..... Most of ours is considerably finer and we only have to deal with sand, not the various grades of aggregate found on the Nome beach so I don't have to classify at all . Virtually all of ours will run through a -100 mesh screen like water.... Some beaches do have courser gold but not by much.

With that said I will simply state that no piece of kit is going to catch all the gold all the time. Each site and the grade or fineness of the gold requires you tune your equipment and technique to the location.

Some gold just don't like to get caught... to quote a phrase.
Gold hog, has operating parameters that if not dialed in will lose gold.
Gold cube will lose gold also if you do not stay within it's operating parameters.
Pop-n-sons will lose gold if you do not stay within it's parameters.

Granted cleangold is a somewhat different critter in that it uses the magnetite as a retention matting. Water flow, angle, and load are factors in the successful use of the system.

Here is a video that has about as much information as publicly allowed on the system. It starts at the 2 minute mark so you don't have to wade through the intro stuff.
Cleangold sluice on the beach

I lived in Nome in the early 80s and a friend of mine and I did a little beach mining out on the west beach.... I was astounded by the gold there. We built a sluice and I had found some old conveyer belting that we put in it to run our material over. we were both very green and gold like this was completely out of our reality and we just didn't know how to deal with it. Cleanup was frustratingly slow and I finally got fed up with trying so I went to work at AC Co. .... I look back now after all these years and wish I had known then what I know now... I'm sure many of you can relate to that ...

Anyway my old mining buddy had been hauling around about 100 lbs. of concentrates we had from that setup.... He recently moved back down here to the lower states and called me, I couldn't believe he had been packing that sand for these 35+ years... Anyway he ask if I wanted it and so I told him to bring it on down and we'll run it through the cleangold sluice. He was amazed, and frankly so was I ... we ran it in a recirculating setup with a controlled flow and angle of about 1000 GPH and an eagle of about 1 inch per foot ..... the material was all 3/32nds and smaller so no additional classification was needed. which but the way 1/4" is really the upper limit as to material size you should run... Smaller is better.

So how did it do.... it caught about 80% ... Yup we watched some of those hard to catch pieces flitter and flutter they're way down the sluice but they were some of those hard to catch types that would have given any system a bad time. overall we were wishing we would of had that sluice on the beach when we were there.

Well that's about it for now.... My typing is pretty much hunt and peck and I'm about tuckered out.

[1 edits; Last edit by WmA at 15:25:50 Fri Mar 3 2017]

  
peluk
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Re: Geowizard's TOP TWENTY! ( 21:16:53 FriMar 3 2017 )

WmA,thanks for the information. Having dealt with both beach areas(Nome and Oregon),you have a knowledge of
what works better than I. That video of the Cleangold Sluice in action reminded me of Robert Service' line in "The Road Not Taken" also called "Two Roads". "Knowing how way leads on to way,I doubted if I should ever return."
So here I am about 3 hours after you pointed out that YouTube video and I finally just had to close out on YouTube and say "enough". I went from Cleangold into gold dust concentrating tables and I'm glad I didn't have to be someplace less interesting. Good luck with your mining.

  
WmA
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Re: Geowizard's TOP TWENTY! ( 00:35:23 SatMar 4 2017 )

LOL..... Peluk, I am glad I could offer you some diversion from some of the more mundane aspects of life.

This is some gold I took off a beach about 15 minutes from my home. I moved about 4, 5 gallon buckets and about an hours worth of work for it, Had to haul those suckers about 100 yards to get to the sluice due to water availability...... Nothing like Nome but it gets me off the couch.

This was captured using the cleangold sluice Dimensions of the sluice are 16" wide x 24" long with a slick plate of the same dimensions.


Cleangold Sluice
Gold from a cleangold sluice
[2 edits; Last edit by WmA at 01:41:51 Sat Mar 4 2017]

  
peluk
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Re: Geowizard's TOP TWENTY! ( 05:12:28 SatMar 4 2017 )

I'd keep doing whatever you did to get that. That's a good return for your efforts.But that looks like a lot larger specimens than -100 and below.

  
WmA
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Re: Geowizard's TOP TWENTY! ( 06:29:04 SatMar 4 2017 )

Thank's Peluk.
Between an unsteady hand trying to get a closeup shot and using my cell phone camera it is pretty blurry so i suspect that is the reason it looks larger.
Heavy pans.....
William

  

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