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A compositional analysis of silver Roman imperial coins using XRF
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<p>[QUOTE="GSDykes, post: 2255891, member: 73321"]Yes, I just added 4 more silver coins, .999 and .900 coins of the US. Three of them were not .900!! The 2015 ASE was .999. The other supposedly .900 alloys were 7 to 8 percent below that mint specification! And with your prompting, I did my own math, and corrected a few of the "standard" settings, on the introductory page. The updated version is always available here:</p><p><br /></p><p>one more time:</p><p><a href="http://www.Biblical-data.org/GSD_specific_gravity_tests.pdf" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.Biblical-data.org/GSD_specific_gravity_tests.pdf" rel="nofollow">www.Biblical-data.org/GSD_specific_gravity_tests.pdf</a></p><p><br /></p><p>So Kurt, we have more evidence, of possible debasing. I have more material for future XRF tests. I tested each new Ag coin, 3 or 4 times, everything was at 72 degrees. Time and time again, we are finding low percentages of silver in our US minted coinage!! Older junk silver, and current mintages. Even the 50th Anniversary Kennedy 4 coin set is suspicious, per my testing! <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie5" alt=":confused:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>
[QUOTE="GSDykes, post: 2255891, member: 73321"]Yes, I just added 4 more silver coins, .999 and .900 coins of the US. Three of them were not .900!! The 2015 ASE was .999. The other supposedly .900 alloys were 7 to 8 percent below that mint specification! And with your prompting, I did my own math, and corrected a few of the "standard" settings, on the introductory page. The updated version is always available here: one more time: [URL='http://www.Biblical-data.org/GSD_specific_gravity_tests.pdf']www.Biblical-data.org/GSD_specific_gravity_tests.pdf[/URL] So Kurt, we have more evidence, of possible debasing. I have more material for future XRF tests. I tested each new Ag coin, 3 or 4 times, everything was at 72 degrees. Time and time again, we are finding low percentages of silver in our US minted coinage!! Older junk silver, and current mintages. Even the 50th Anniversary Kennedy 4 coin set is suspicious, per my testing! :confused:[/QUOTE]
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