What is this

[Joni3333]

Hello all,i found those pieces in the shore of a river, it turned out that they have big amount of silver in them.I made even analysis.... does someone have found anythnig simmilar?

 

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[ARC]

Sure looks like Aluminum nuggets to me.

 

[Joni3333]

And my first tought was aluminium but the analysis said other strange.

 

[Broken knee]

What did you use to test it

 

[Tony in SC]

I also think aluminum nuggets, usually found on river banks, beaches and other places where there were campfires?

 

[marjam]

Aluminum is light, so does the slag have any weight to it or does it feel light? It sure looks like melted Aluminum slag but if your testing method is sound and states otherwise, maybe something else.

Did you find this in a state where precious metals have been found?

 

[Dougie Webb]

Echoing the others above, looks just like aluminum can slag I found recently myself. How did you determine it was silver?

 

[jeff of pa]

I was gonna say Solder, But if you Say it Tested for silver. Very Cool Congrats !

I'd then Say, Must be Coins or Silver ware that was in a fire

Sorry the Chemical analysis goes over my Head

 

[Joni3333]

XRF analysers X-MET8000

 

[Joni3333]

XRF analysers, the X-MET8000

 

[xr7ator]

Campfire nuggets made by melted cans in a fire. I guess someone could have thrown some silver in the fire, too, but call me a skeptic.

 

[marjam]

Maybe get a precious metals acid testing kit to confirm. If its silver, it will give a reaction. I think it's turns blue but can't remember exactly. I don't have a acid testing kit but thought about getting one as I sometimes pick up junk silver here and there at flea markets, etc.

 

[Charlie P. (NY)]

There are solders with high silver content - used in brazing. I use silver solder to add "keepers" to fish-hooks for soft baits (it doesn't corrode). Sorry for blurry image.



Silver solder uses - Silver (Au), copper (Cu) and tin (Sn).

 

[Radon]

I would agree with Charlie P. It looks like it could be a brazing alloy, with the main ingredients being mostly silver and copper. I see on McMaster-Carr that they have one with 72% silver and 28% copper. I didn't do an exhaustive look.

 

[ersbel]

is this a meteorite? diamond?