'Sweated' Gold Coins

[jeff of pa]

 

Amazon Forum Fav 👍

Cry Of The Eagle: History And Legends Of The Cherokee Indians And Their Buried Treasure - Grab it through Amazon!

[l.cutler]

Huh, never heard that one. I wonder if those lightweight coins are still around today.

 

[Tesorodeoro]

There were also “clipped gold coins”, where folks handling large amounts of gold coins would shave a little off the edges before passing the coin on. The reeding was added to combat this.

 

[jeff of pa]

Huh, never heard that one. I wonder if those lightweight coins are still around today.

most likely if there are, They get Mistaken for Chinese Countrfeits
once weighed.

 

[Almy]

The only chemical mixture I know of which is capable of etching or dissolving gold is "aqua regia", a fuming mixture of nitric and hydrochloric acids. It attacks all metals, and, as you can imagine, is very injurious to human tissues. It would take a special lab to use it safely. I don't know how gold dissolved into it could be recovered.

 

[Tesorodeoro]

The only chemical mixture I know of which is capable of etching or dissolving gold is "aqua regia", a fuming mixture of nitric and hydrochloric acids. It attacks all metals, and, as you can imagine, is very injurious to human tissues. It would take a special lab to use it safely. I don't know how gold dissolved into it could be recovered.

This problem was solved many years ago. Quick Google search will explain the recovery method.

 

[ConceptualizedNetherlandr]

The only chemical mixture I know of which is capable of etching or dissolving gold is "aqua regia", a fuming mixture of nitric and hydrochloric acids. It attacks all metals, and, as you can imagine, is very injurious to human tissues. It would take a special lab to use it safely. I don't know how gold dissolved into it could be recovered.

'chemical mixture' ... and then there is Hg. Have you seen a coin acid stripped of clad revealing a copper core which still looks like a coin?

A similar result should occur with Hg on a gold coin.

Take only 5% and who would notice without weighing it?

 

[jeff of pa]

using the word "Sweating" Confusing. it's not Like 'Sweating Bullets'. there is no moisture involved.


Sweating. In the process of sweating, coins were placed in a bag and shaken. The bits of metal that had worn off the coins were recovered from the bottom of the bag. Sweating tended to wear the coin in a more natural way than clipping, and so was harder to detect.