Question About Testing American Coin Silver with 14k Nitric Acid:
I have some new nitric acid, and I find 14k acid turns light yellowish-gray on sterling.
I tested some silver alleged to be coin silver and it turns a medium charcoal gray.
Is this right? It did not turn green or blue, that is definite.
I know if it turns green or blue that means the item does not have significant silver content.
Can someone please tell me if my test indicates coin silver or not?
Coin silver (American) is supposed to be 900 silver.
Thank you very much for any help.
Thank you owl,
but he question is not what the silver content of certain coins is,;
the question is what is the silver content of the group of coin silver flatware I have.
I thought American coin silver is 900 which is almost as pure as sterling but my flatware is testing more like 800 silver. Or is it? That is what I don't know. The test color is very dark gray.
I was sort of planning to scrap it, when silver was about 45. or so. I missed my chance to do that, for the time being anyway. Scrappers do not pay a lot for 800 silver and I won't get much unless silver goes up well into the forties again. Most ebay buyers do not seem to,either.
No it is not marked "coin silver".
I have seen a lot of American coin silver flatware over the years, and none of it says "coin silver". The flatware I have is marked with the maker's signature only.
I have seen one little dish marked "coin silver" and a number of European, South American and Israeli items marked 800.
I am wondering if the flatware I got is actually 800, European coin silver rather than 900 and if that is why it is testing dark gray with 14k acid. I did not test it with 18k acid.
I suppose you would call it dark. When you use 18k you get a bluish white, kind of milky change. Maybe if I get time this weekend I will post pics. They make a silver test acid that turns red too. I have always used 18k.
___________________________________________________ Some should name the chip that resides on their shoulder "Hypocrite"
I forgot to say i have that silver test stuff too that is SUPPOSED to turn dark red with sterling.
because mine does not,
and did not from the day it arrived here in the mail.
I have given up on it in frustration.
I was advised by a pro who tests gold and silver all the time to ignore the silver test stuff and just use nitric. I once had a bottle of silver test stuff that worked for a long time, i.e. turned dark red with sterling.
The stuff I have now pretty much stays brown with sterling and also non-sterling'; Occasionally something turns it greenish black,. But it never turns red even on sterling items. Pretty hopeless.
In fact I had such a bad time testing these coin spoons that I unknowingly dribbled some all over one hand and did not even notice it until I had quite a bit of it on me.
It turned my skin brown though ti did not hurt and now is slowly peeling off. It would not have happened it the test had not been so problematic.