monovalent gold

[hodhod1403]

Nothing here looks like Gold.
If there is any Precious Metals in there you can put in a piece of Copper and they will cement out.
Just make sure it is acidic

I put a copper foil in the acid solution that contains gold(|) . After 24 hours, the solution turned black and the copper is dissolving and black particles have settled under it. Question? Why do you think the solution turned black and how long does it take to dilute it?

 

[Yggdrasil]

I put a copper foil in the acid solution that contains gold(|) . After 24 hours, the solution turned black and the copper is dissolving and black particles have settled under it. Question? Why do you think the solution turned black and how long does it take to dilute it?

I can't say why the solution turned black.
But the black particles may or may not be Gold.
Have you had a proper stannous test yet?

 

[4metals]

As @tmj883 pointed out there are deposits of Carlin type gold in Iran and you can find an excellent description HERE. There are some interesting and concerning points in the article, first and foremost the gold is contained in arsenic rich pyrite. In case the OP was not aware arsenic when put into acids, (hydrochloric, nitric, and sulfuric) produces a TOXIC arsine gas.

For your own safety stop putting these samples into acid!

Second the article mentions this type of deposit typically runs 0.20 to 0.25 ounces of gold per ton. At these concentrations you are looking to detect by crude analytics, gold in the range of 3.5 milligrams per pound of sample. Not likely to succeed.

So while it is likely true, the geology of the region we ASSUME the OP is in may contain gold in quantities that, as Deano said, are difficult to recover. Recovering gold from these deposits will require a lot of financial investment from larger corporations experienced working these type deposits.

More important @hodhod1403 consider the consequences of putting arsenic in acid!

 

[Barstool miner]

Well this an opinion I respect from Deano from down under. No stranger to gold in it's natural form.

Many times in my career I have been sent samples of ore that were not assayable by standard methods, either qualitatively or quantitatively. Yet the owner was convinced there was payable gold in the ore. None of them ever would own up to how they determined that this mystery material contained gold.


Best we can tell you from what you have told us is to screen the soil through a 5 micron screen with the hope the fine monovalent gold passes through the screen with some of the fines in the soil. This sample, having passed the screen may be separable by density in a gold pan enough to give you a sample to test further.


Still open to answers from other regions of the world about gold found in unlikely places.

Has anyone else here Washed a quantity of riverbed sand in a gold-bearing Area? Then, separate the water from the sand and put it in a clean Beaker. Let this water settle for a few days. Then, Use a Green Laser pointer to direct the laser light through the water in the Beaker from one side. What can be observed
suspended in the water should be nanoparticles of metals. Please do not Inquire, do!

 

[4metals]

What can be observed
suspended in the water should be nanoparticles of metals.

While seeing is believing, and I have no doubt about what you say, recovery as in concentration and separation, is the real issue.

 

[Yggdrasil]

Has anyone else here Washed a quantity of riverbed sand in a gold-bearing Area? Then, separate the water from the sand and put it in a clean Beaker. Let this water settle for a few days. Then, Use a Green Laser pointer to direct the laser light through the water in the Beaker from one side. What can be observed
suspended in the water should be nanoparticles of metals. Please do not Inquire, do!

What you see is particles of any valor from micro to nano size.
Quartz, granite, metals, oxides and what not in a sufficent small size to not settle completely.
The lazer just illuminate something.
The likelyhood of it to be a precious metal is less than any of the other lighter elements.
Both due to rarity and density.

 

[Barstool miner]

What you see is particles of any valor from micro to nano size.
Quartz, granite, metals, oxides and what not in a sufficent small size to not settle completely.
The lazer just illuminate something.
The likelyhood of it to be a precious metal is less than any of the other lighter elements.
Both due to rarity and density.

Thank you for your input, very informative. But has anyone in the forum repeated my method? The trick is to let all the nonmetals settle before using the Green Laser. Have fun

 

[Yggdrasil]

Thank you for your input, very informative. But has anyone in the forum repeated my method? The trick is to let all the nonmetals settle before using the Green Laser. Have fun

Metals are heavier than most non metals so they will settle first.
And any reason to use a green laser opposed to blue or red?

 

[Barstool miner]

While seeing is believing, and I have no doubt about what you say, recovery as in concentration and separation, is the real issue.

That is very true. Seeing is believing. I understand that the proof of the Pudding is in the Eating. My process is very time-consuming. A great deal of float gold is lost while sluicing for gold and is left behind in river beds but this is the Gold I am after. Not all this river sand contains any gold. In some areas where I do this, I consistently get Profitable Gold. Jeff Williams, who was on YouTube, introduced me to this concept. I trust you are having Fun

 

[Barstool miner]

Metals are heavier than most non metals so they will settle first.
And any reason to use a green laser opposed to blue or red?

Nano-particle Gold is negatively charged This is why these are suspended in Water. I will post 2 photos of laser colors

 

[4metals]

A great deal of float gold is lost while sluicing for gold and is left behind in river beds but this is the Gold I am after. Not all this river sand contains any gold. In some areas where I do this, I consistently get Profitable Gold.

Are these particles heavy enough to spin down in a centrifuge?

 

[Yggdrasil]

Nano-particle Gold is negatively charged This is why these are suspended in Water. I will post 2 photos of laser colors

Nano particle Gold metal is neutrally charged.
Monovalent Gold exist only as AuCl which is highly unstable and will decompose to either Au metal or AuCl₃

 

[4metals]

Nano particle Gold metal is neutrally charged

Maybe natural nano particles are neutrally charged but I have never seen that written anywhere. They can be manipulated to have positive, negative or neutral charges but when generated in a lab with citrate chemistry they are negatively charged. Maybe that is why they are so elusive.

 

[Justincase]

Nano-particle Gold is negatively charged This is why these are suspended in Water. I will post 2 photos of laser colors

 

[Yggdrasil]

Maybe natural nano particles are neutrally charged but I have never seen that written anywhere. They can be manipulated to have positive, negative or neutral charges but when generated in a lab with citrate chemistry they are negatively charged. Maybe that is why they are so elusive.

That charge should dissipate quickly the moment they are in liquid should it not?
Anyway that should have no bearing for the claim of monovalent Gold.

 

[Barstool miner]

Are these particles heavy enough to spin down in a centrifuge?

I do not have access to a centrifuge , That should be interesting

 

[goldshark]

I do not have access to a centrifuge , That should be interesting

We coated a Copper sheet with Mercury, to recover amalgam from ball milled placer concentrates. Water running over the copper/amalgam sheet would start to get a gold colored sheen on it, before any cons were run over it. This was discussed in another thread somewhere on this site. Since I wasn't in control of the operation, I wasn't able to definitively determine if the Mercury was collecting the micro Au in water suspension. I believe it to be very plausible though. If I had to put a number to Au below the 300 mesh range, I would put that at around 90% of the Au in the world falls into that size particle.

 

[4metals]

Years ago I used a centrifuge made to filter, by centripetal force, metal hydroxides out of a waste treatment slurry. It worked great and it had a scoop which pushed out the toothpaste like sludge while the centrifuge was running. Today they make centrifuges called algae centrifuges to pull solids from liquid. Inside it looks like this;

And the flow schematic looks like this

I can imagine a mercury coated copper sheet inside the collection area as @goldshark mentioned and possibly the combination of the amalgam formation and the contact provided by a slow flow through a centrifuge, it may just be effective. You could set something like that up on a flow of water containing nano particles of gold and let it just run. I've always been a fan of making money while you sleep!

 

[Justincase]

Yes, there is gold everywhere.
So finely dispersed that it is uneconomical to recover.
Because of the way the earth was reseeded by asteroids after all its native gold coalesced in the earths core during formation.
The problem is one of processing scale.
All the economically viable deposits are the result of geological processes that have taken billions of years, processing many trillions of tuns of material.
Under a heat and pressure, we would find it impossible to recreate outside relatively small demonstrations.
Mankind can not reproduce these processes because of the scale both in time energy and quantities of material you would need to process.

 

[Yggdrasil]

Years ago I used a centrifuge made to filter, by centripetal force, metal hydroxides out of a waste treatment slurry. It worked great and it had a scoop which pushed out the toothpaste like sludge while the centrifuge was running. Today they make centrifuges called algae centrifuges to pull solids from liquid. Inside it looks like this;
View attachment 65545
And the flow schematic looks like this
View attachment 65546
I can imagine a mercury coated copper sheet inside the collection area as @goldshark mentioned and possibly the combination of the amalgam formation and the contact provided by a slow flow through a centrifuge, it may just be effective. You could set something like that up on a flow of water containing nano particles of gold and let it just run. I've always been a fan of making money while you sleep!

Hmm looks a bit like these old milk separators.
We have one of these in my fathers old house, hand driven though.