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<p>[QUOTE="Vern, post: 29020, member: 347"]I see, said the blind man. </p><p><br /></p><p>I'm a little dull. Sometimes I need it spelled out. Haha</p><p><br /></p><p>I think I could do that. Here in Alaska it is tough, there aren't many xrf machines in businesses. Looking online I see there are a few assayers that do this through mail and are quite a bit cheaper than Oxford. </p><p><br /></p><p>After examining the metal with a loupe every now and then, one conclusion I can make myself is that the metal is far from homogenous. There are small areas that don't tarnish mixed with areas that tarnish dark grayish. On the back the old verdigris was faintly visible after a long period of time but just ever so slightly green. There are lots of bubbles and changes in the structure of the metal that remind me of old loaf silver bars. </p><p><br /></p><p>I will mention that the xrf readout for the white brass pins was spot on. It did not have the exotic metals shown in the wheel readout. Also it is known that Platinum group metals, copper, iron, and others also occur naturally in gold ore in small amounts. One logical explanation could be that this was the leftover "heavies" after lots of gold refining during the rush… Maybe spiked with a little gold or they were producing so much that the 15% in this slipped through. I doubt that though. I'm just voicing possibilities I've considered.[/QUOTE]</p><p><br /></p>
[QUOTE="Vern, post: 29020, member: 347"]I see, said the blind man. I'm a little dull. Sometimes I need it spelled out. Haha I think I could do that. Here in Alaska it is tough, there aren't many xrf machines in businesses. Looking online I see there are a few assayers that do this through mail and are quite a bit cheaper than Oxford. After examining the metal with a loupe every now and then, one conclusion I can make myself is that the metal is far from homogenous. There are small areas that don't tarnish mixed with areas that tarnish dark grayish. On the back the old verdigris was faintly visible after a long period of time but just ever so slightly green. There are lots of bubbles and changes in the structure of the metal that remind me of old loaf silver bars. I will mention that the xrf readout for the white brass pins was spot on. It did not have the exotic metals shown in the wheel readout. Also it is known that Platinum group metals, copper, iron, and others also occur naturally in gold ore in small amounts. One logical explanation could be that this was the leftover "heavies" after lots of gold refining during the rush… Maybe spiked with a little gold or they were producing so much that the 15% in this slipped through. I doubt that though. I'm just voicing possibilities I've considered.[/QUOTE]
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