Real Gold? Are You Sure? An Examination Of Modern Gold Counterfeiting
I spent some time looking into this matter and I can tell you that, yes, there may be problems with gold counterfeiting with tungsten nowadays (in minor measure, also with silver). Not so bad as some people say, but not to be underestimated.
Stacks of gold bars stored in the bank of England (from the Daily Mail). An impressive display of wealth, with only one small problem: can we be completely sure that all that glitters is real gold?