by goldsilverpro » Mon May 09, 2011 10:49 am
Definitely unethical the way he has it listed. Any person that can't see this would not be someone I would ever do business with.
The term "mil" has 2 very different meanings in the US. The correct meaning is 1/1000" = 1 thousandth of an inch. Unfortunately, in later years, it has incorrectly become slang for 1 millionth of an inch. In plating, base metal plating, such as Cu, Ni, or Zn, is usually measured in mils = thousandths of an inch. For precious metals plating, the thickness is most always measured in millionths of an inch. It this case, it has to represent 100 millionths of an inch. The main reason is that, with 1/10" of plating, it's virtually impossible to get a final smooth surface like we see on the bar. In any case, the detail on the bar would be essentially obliterated at that plating thickness. So, in this case, the thickness of silver is .000100" = 100 millionths of an inch.
A bar of copper 1/8" x 1.07" x 1.6" would have a weight very close to 1 troy oz. The surface area (totaling all surfaces) on this bar is about 4 square inches and, therefore, there would be a total of about .0004 cubic inches of silver. A cubic inch of silver weighs 5.5 tr.oz. Therefore, there is 5.5 x .0004 = .0022 tr.oz. of silver on the bar. At a $37.11 spot, the total silver value of the bar is a little over 8 cents.
Last edited by
goldsilverpro on Mon May 09, 2011 11:29 am, edited 1 time in total.