lab rat
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- May 21, 2003
- 947
- 141
- Detector(s) used
- Minelab Sovereign
- Primary Interest:
- Beach & Shallow Water Hunting
Anybody else ever encounter anything like this?
I found this ring last week.? It is marked '.925 Thailand'.? I did a density test on it and it falls in at 10.37, definitely in the range for solid sterling silver.
It appears to have been plated; some of the plating is wearing off.? Silver is often plated with rhodium to prevent tarnish.
The wierd thing about this ring is that a strong magnet will pick it up.
Silver is most often alloyed with copper (92.5% Ag : 7.5% Cu) to make Sterling.? I am wondering if nickel might have been substituted for copper in making this ring.? (Pure nickel is magnetic, as are iron and cobalt.)? ? But a U.S. Nickel is 25% nickel and 75% copper-- and my magnet won't pick it up.
Anybody know anything about alloys?
I found this ring last week.? It is marked '.925 Thailand'.? I did a density test on it and it falls in at 10.37, definitely in the range for solid sterling silver.
It appears to have been plated; some of the plating is wearing off.? Silver is often plated with rhodium to prevent tarnish.
The wierd thing about this ring is that a strong magnet will pick it up.
Silver is most often alloyed with copper (92.5% Ag : 7.5% Cu) to make Sterling.? I am wondering if nickel might have been substituted for copper in making this ring.? (Pure nickel is magnetic, as are iron and cobalt.)? ? But a U.S. Nickel is 25% nickel and 75% copper-- and my magnet won't pick it up.
Anybody know anything about alloys?
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