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<p>[QUOTE=&quot;Colonialjohn, post: 2131555, member: 57741&quot;]Desertgem - I did confirm that normally HCL dip is used and this is standard practice for treating silver making it non-corrosive to airborne elements. It could also be that traces are possibly left on the surface which of course is AgCl. A remote possibility. QC Inspection would catch this phenomenon. These high silver pieces simply need a better post-treatment anti-oxidant specific to this alloy&#039;s requirements. These milk spots of AgCl and other? Ag compounds possibly are being created after they leave the mint - IMO.</p><p>Like you said - we would need EVERY step of the production process. I would dig into this further in my lab but for what purpose? They will work it out.</p><p><br /></p><p>JPL[/QUOTE]</p><p><br /></p>

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