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 Replies: 88 / Views: 6,034 |
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Valued Member
United States
67 Posts |
Just got it back from being authenticated at NGC, pictures are at the cert URL below. Attached is the details of the metallurgic XRF report from NGC. Has there ever been a War Nickel discovered with no manganese apart from foreign planchet errors? Standard composition is 56% copper 35% silver 9% manganese https://www.ngccoin.com/certlookup/.../NGCDetails/ |
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Pillar of the Community
United States
4395 Posts |
I'm reasonably sure the missing 8% in the XRF analysis is mostly Manganese given NGC did not mention any metallurgical error on the slab.
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Pillar of the Community
United States
3468 Posts |
51% copper, 40% silver... that 91% What's the other 9%?
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Bedrock of the Community
United States
19113 Posts |
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Valued Member
 United States
67 Posts |
Their XRF service says it lists the 3 most abundant metals so whatever is left of the 9% would only be trace metals. I'm going to call NGC to confirm this.
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Bedrock of the Community
 United States
10478 Posts |
Looks like they just didn't print out the "9% Mn" -
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Valued Member
United States
67 Posts |
I don't think so, there is absolutely no ringing noise on the ping test which is why I sent it in for xrf in the first place. It's probably got some mixture of lead/iron etc
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Pillar of the Community
United States
3468 Posts |
If you don't mind sharing, what does NGC charge for XRF testing?
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Valued Member
United States
67 Posts |
All told spent around $160 authenticating this coin, the xrf is $75 but you have to also pay for it to be graded as an error coin. I also got extra high grade pictures in case it turned out to be an off-metal and fortunately it did.
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Pillar of the Community
United States
6994 Posts |
 so what is the reported missing 9% |
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Pillar of the Community
 United States
1502 Posts |
I wonder how many XRF tests were performed at different positions. Similar to a woody, could just be a poorly mixed alloy that may be reading low copper/high silver in one area - additional readings may have differing results. Bad readings with XRF are also a possibility as well as using an XRF model/version that does not capture Mn. I would hope that is not the case but...TPGs are, well, TPGs.
I'm with everyone else, I suspect the remainder is Mn.
EDIT TO ADD: For future reference, find a local recycler. They usually have XRF and charge by the trigger pull. Mine charges 5 bucks.
I swing a metal detector and have a knack for finding dirty old coins. Dirt coin restoration projects - https://www.prodetecting.com/restorationsDirt coin restoration blog - https://www.prodetecting.com/blog/ccawDirt coin dig videos - https://www.youtube.com/@prodetectingEdited by DOCC
01/13/2025 11:30 pm
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Pillar of the Community
United States
2280 Posts |
You realize when you know how to think, it empowers you far beyond those who know only what to think.
-Neil deGrasse Tyson
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Pillar of the Community
United States
1998 Posts |
I thought War Nickels are only 35% silver? And copper 56%. Still leaves 9% for manganese though. |
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Bedrock of the Community
United States
10478 Posts |
Read the bottom of that paper!  |
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Pillar of the Community
United States
1998 Posts |
Thanks Marve65, always pays to read the small print!
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Bedrock of the Community
United States
24919 Posts |
Look at Marve sleuthing out the clues!  Inordinately fascinated by bits of metal with strange markings and figures
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Replies: 88 / Views: 6,034 |
Posted 01/13/2025 9:03 pm
