Easy Micron Gold Recovery ++

[nickmarch]

Hello All!

Have any of you tried the Two Bucket Recovery Method? The method can easily capture flour gold working in the field or on your cons at home. It captures down into the invisible to the naked eye range. It gets it all! You can easily make your own at home. It will cost you two buckets and about 50 cents. You can see a video of the method at...

 

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[Eric Willoughby]

Interesting..... 8)

 

[ronald99]

Man did it Snow in Alabama Today, I forgot what was going on.

 

[Tarkus]

I'll try this tonight, my workings are all tiny to flour but a lot of it and need a way to concentrate down quickly. I will chime back in on the results.

Thanks

 

[ClarkM]

Any results yet? I am heading for Wickenburg in a week and am thinking of trying this out.

 

[Sackett]

I realize that this is an old thread, but when I read it I knew that I had to reply...I tried this 2 bucket method and tested it...I placed 3 picker sized gold pieces in the bucket for testing...I ran the process, I did NOT recover any of my 3 pieces. I then tried this 3 more times, and never once did I get any of the 3 pieces back, nada 1!~!!! So in my opinion and from my testing the 2 bucket method is not worthy of use!!!

 

[nickmarch]

I realize that this is an old thread, but when I read it I knew that I had to reply...I tried this 2 bucket method and tested it...I placed 3 picker sized gold pieces in the bucket for testing...I ran the process, I did NOT recover any of my 3 pieces. I then tried this 3 more times, and never once did I get any of the 3 pieces back, nada 1!~!!! So in my opinion and from my testing the 2 bucket method is not worthy of use!!!

You watched the video? Did you notice "Micron Gold Recovery?" The two bucket method is not for pickers! It is for classified materials and captures the flour gold. Pickers would not be dead center in the test cap pickers would be touching the wall of the bucket.

You need to classify! 20 mesh works best! At 20 mesh it will capture from 20 mesh to -200 mesh.

Specific Gravity


Sand 1.44

Sand with gravel 2.00

10K GOLD 11.75
12K GOLD 12.65
14K GOLD 13.55
18K GOLD 15.47
22K GOLD 17.72
24K GOLD 19.29


Magnetite Solid 5.05

Magnetite Broken 3.29

----------------------------

24k gold is 14 times heavier than sand.

24k gold is 3.94 times heavier than Magnetite.

18 mesh = 1000 microns

20 mesh = 841 microns

30 mesh = 595 microns

200 mesh = 74 microns

Roughly 50 microns is visible to the eye. (not my eyes)

Gold will begin to stay suspended (or even float) in water at about 74 microns

----------------------------

Keep in mind that we are not working with 24k gold!

74 microns x 14 = 1036 microns so a 74 micron gold particle will weigh approximately the same as a 18 mesh (1000 micron) particle of sand but the gold will still drop faster as it is smaller and will offer less resistance.

74 microns x 5.05 = 373.7 microns so a 74 micron gold particle will weigh approximately the same as a 40 mesh (400 micron) particle of magnetite but the gold will still drop faster as it is smaller and will offer less resistance.

----------------------------

The point I'm trying to make... use a 18 or 20 mesh classifier!

----------------------------

18k Gold

18k gold is 10.75 times heavier than sand

18k gold is 3 times heavier than magnetite

----------------------------

74 microns x 10.75 = 795 microns so a 74 micron gold particle will weigh approximately the same as a 22 mesh particle of sand.

8 mesh = 2380 microns

2380 microns x 10.75 = 25585 microns

----------------------------

63 Micron = 230 mesh 18k gold = 15.47 specific gravity

18k gold is 10.74 times heavier than sand

18k gold is 3.06 times heavier than Magnetite Solid

63 microns x 10.74 = 677 microns (25 mesh = 707 microns)

63 microns x 3.06 = 193 microns (70 mesh = 210 microns)

63 micron gold weighs the same as 25 mesh sand

63 micron gold weighs the same as 70 mesh magnetite

----------------------------

 

[2cmorau]

thought this was interesting

What does mesh size mean? Figuring out mesh sizes is simple. All you do is count the number of openings in one inch of screen (in the United States, anyway.) The number of openings is the mesh size. So a 4 mesh screen means there are four little squares across one linear inch of screen. A 100 mesh screen has 100 openings, and so on. Note, therefore that as the number describing the mesh size increases, the size of the particles decreases. Higher numbers = finer powder. Mesh size is not a precise measurement of particle size. Screens can be made with different thicknesses of wire. The thicker the wires, the smaller the particle passing through that screen, and vice versa.

What do the minus ( - ) and plus ( + ) plus signs mean when describing mesh sizes? Here’s a simple example of how they work. –200 mesh aluminum would mean that all particles will pass through a 200 mesh screen. A +200 mesh aluminum means that all the particles are retained on a 200 mesh screen

How fine do screens get? That depends on the wire thickness. But the supplier of our screens does not offer any screens finer than 500 mesh. If you think about it, the finer the weave, the closer the wires get together, eventually leaving no space between them at all. So, beyond 325-400 mesh, we usually describe particle size in “microns.”

What is a micron? A micron is another measurement we use for measuring particle size. A micron is one-millionth of a meter or one twenty-five thousandth of an inch.

This table is adapted from a post made by Ken Kosanke to the PML and previously published in a PGII Bulletin.

U.S. Standard * Space between wires

Sieve Mesh No. Inches Microns** Typical material

14 0.056 1400

28 0.028 700 Beach sand

60 0.0098 250 Fine sand

100 0.0059 150

200 0.0030 74 Portland cement

325 0.0017 44 Silt

400 0.0015 37 Plant Pollen

(1200) 0.0005 12 Red Blood Cell

(2400) 0.0002 6

(4800) 0.0001 2 Cigarette smoke

 

[russau]

i saw this last year on another site and i made one and used it according to the directions given. i used some cons that ive go through several times and thought i had it all out. i must have done a good job panning it ,cause i didnt see anything. maybe ill try some more cons whenever i get around to it..

 

[Paper Magnet]

You watched the video? Did you notice "Micron Gold Recovery?" The two bucket method is not for pickers! It is for classified materials and captures the flour gold. Pickers would not be dead center in the test cap pickers would be touching the wall of the bucket.

You need to classify! 20 mesh works best! At 20 mesh it will capture from 20 mesh to -200 mesh.

Specific Gravity

Sand 1.44

Sand with gravel 2.00

10K GOLD 11.75
12K GOLD 12.65
14K GOLD 13.55
18K GOLD 15.47
22K GOLD 17.72
24K GOLD 19.29

Magnetite Solid 5.05

Magnetite Broken 3.29

----------------------------

24k gold is 14 times heavier than sand.

24k gold is 3.94 times heavier than Magnetite.

18 mesh = 1000 microns

20 mesh = 841 microns

30 mesh = 595 microns

200 mesh = 74 microns

Roughly 50 microns is visible to the eye. (not my eyes)

Gold will begin to stay suspended (or even float) in water at about 74 microns

----------------------------

Keep in mind that we are not working with 24k gold!

74 microns x 14 = 1036 microns so a 74 micron gold particle will weigh approximately the same as a 18 mesh (1000 micron) particle of sand but the gold will still drop faster as it is smaller and will offer less resistance.

74 microns x 5.05 = 373.7 microns so a 74 micron gold particle will weigh approximately the same as a 40 mesh (400 micron) particle of magnetite but the gold will still drop faster as it is smaller and will offer less resistance.

----------------------------

The point I'm trying to make... use a 18 or 20 mesh classifier!

----------------------------

18k Gold

18k gold is 10.75 times heavier than sand

18k gold is 3 times heavier than magnetite

----------------------------

74 microns x 10.75 = 795 microns so a 74 micron gold particle will weigh approximately the same as a 22 mesh particle of sand.

8 mesh = 2380 microns

2380 microns x 10.75 = 25585 microns

----------------------------

63 Micron = 230 mesh 18k gold = 15.47 specific gravity

18k gold is 10.74 times heavier than sand

18k gold is 3.06 times heavier than Magnetite Solid

63 microns x 10.74 = 677 microns (25 mesh = 707 microns)

63 microns x 3.06 = 193 microns (70 mesh = 210 microns)

63 micron gold weighs the same as 25 mesh sand

63 micron gold weighs the same as 70 mesh magnetite

----------------------------

Mesh comparison