Does anyone know of a plating material that is used to plate
sterling silver and is slightly ferromagnetic?
The reason I ask this question is that I am repairing a religious
item (torah crown) with a filigree design. This is a large item,
about 9 inch diameter and about 12 inches high (hollow, not solid)
When I initially received the item for repair, I tested it with a
rare earth magnet and found the object to be very mildly
ferromagnetic. Ie the magnet stuck, but just barely.
I assumed that the object was not sterling silver.
During some discussions with Jeff Herman, he encouraged me to remove
some of the plating material and test the metal beneath. The metal
acid tested (using the premixed red testing solution) to be sterling
Surprisingly, the area from which I removed the plating became non
ferromagnetic ie the magnet no longer was attracted to that area.
Leaving me to conclude that the plating itself must be ferro magnetic
The plating is a bright and shiny silver color, and looks something
like chrome plating.
I assume the object had been plated to hide firescale or to prevent
tarnish and the need to polish.
I have already completed the repairs, but I am still curious to
understand what the item is plated with.
Does anyone know what this could be?