I’d like to add a little tidbit about gold and precious metals
turning color. I’ve had my own 14K gold turn my finger black.
The same ring I had worn for 30 years. I believe it only
happened once or twice, but I was amazed that it happened at all.
At the time I was told it had to do with coffee consumption.
Personally, I don’t think it had anything to do with coffee or
even alcohol consumption, and at the same time I think it was
both. I personally believe it has to do with the total diet and
beverages consumed within the previous 24 hours, and the chemical
changes and balances (or imbalances) that came about.
Apparently I have not duplicated the exact mix in the last 10
years or so, because it hasn’t happened again. The gold on the
ring (both yellow and white) are still bright and shiny and
Being a former med. tech. I know how delicate the chemical
balance of the human body is, and how easily it can be thrown off
by even the smallest element. Sometimes we just react adversly
with the metal. I really don’t think there is any exact answer
for it, it just happens.