2020 Toonie, One Colour - Page 2 - Coin Community Forum

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Author	Replies: 19 / Views: 5,734	Page: of 2

Big-Kingdom Pillar of the Community United States 1667 Posts	Posted 08/09/2021 2:40 pm Quote: "Not necessarily. It is all a function of the beam strength, which can be controlled on many bench top XRF instruments. Sometimes the multi-ply plating can be quite thick and attenuate the beam relatively quickly. Also, it depends what detector the XRF is using, and how the peaks are interpreted by the software. Aluminum can be considered a 'light element' for some detectors, and you need a higher grade detector and a good alloy software package to measure it - a coin store that uses an XRF mostly for jewellery might not have that. A simple magnet test on both the core and ring would answer the question if the host planchets are plated steel." * Edited by Staff to add Quote tags. Please use them in the future. * Still doesn't really explain the 30% copper the test said is there in the outer ring that should not be there at all. I got ya though, it's why I'm thinking setting/operator error. but the results are "fishy" if it is something someone plated over to make it one color. it's finding things that shouldn't be there, and it's not finding things that should be. Edited by Big-Kingdom 08/09/2021 2:41 pm Report this Post to the Staff
rhcoins New Member Canada 4 Posts	Posted 08/09/2021 4:54 pm The outer ring passed the magnet test, so there is definitely some steel there. The core did not, at least with the very small magnet that I used. I will be taking the toonie back for a second opinion from their expert in error coins. They can redo or refine the XRF analysis if necessary. Report this Post to the Staff
john100 Pillar of the Community Canada 5324 Posts	Posted 08/09/2021 5:08 pm As you mentioned bring a regular looking 2020 toonie and repeat the XRF test Report this Post to the Staff
SPP-Ottawa Moderator Canada 10459 Posts	Posted 08/09/2021 5:37 pm Quote: Still doesn't really explain the 30% copper the test said is there in the outer ring that should not be there at all. Why wouldn't it? The multi-ply plating process implies just that. There are multiple layers of nickel and copper in the plating for all Canadian coins, except the loon dollar. "Discovery follows discovery, each both raising and answering questions, each ending a long search, and each providing the new instruments for a new search." -- J. Robert Oppenheimer Content of this post is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. See: http://creativecommons.org/licenses...0/deed.en_US My eBay store Report this Post to the Staff
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