Can anyone tell me the name / definition / title / make / manufacturer
of the machine that is used to find the purity of gold? I have
been told that there exists a machine that can tell the
percentage of gold and different metals in a given jewelry to
find the purity of that gold. Thanks in advance.
Could you mean an electronic gold tester? That will tell you
"gold" or “not gold.” and through using an 18K “gel” or a 14K
"gel" you can determine the karat. But you still have to know a
little something about what you’re doing. Available possibly from
Rio grande and definately from GEM Instruments and like
companies.
There is computer x-ray fluorescence spectrometer been sold in
europe by h.seltsam & sohn gmbh(fax: 0 72 31/26532), and by
italian company FOV. It seens to be very good but they are pricy
(around US$ 30.000). The only problem is that the x-ray bean just
reads a very thin layer and would not be able to detect a hollow
or a “filled” jewel . There were an article in the Gold
Thecnology Magazine ( I’m not sure of the issue number), from
World Gold Council (http://www.gold.org) that tells the pros ans
cons of it.