Awhile back we had a thread here where a member posted the results of some distructive testing of Rhodium Plating on some pen kits. The results of that test were that the Rhodium was very thin and we all wondered how to talk about that in our presentations.
This weekend I happened to be at the website of a USA Plating company that does Rhodium plating. They recommend rhodium be applied only 20 to 30 micro inches thick. Their reasoning is that if applied thicker rhodium tends to be brittle and may chip.
I think that we can all now sleep better with the thought that the rhodium on those kits was very thin because that is how it is supposed to be.
What you might want to do if you are concerned, is ask about the base material. It should be a bright metal - silver, platinum, chrome, or palladium come to mind. Silver might be the brightest...but all should be very bright. Side by side, rhodium should be noticeably brighter than chrome but probably not as bright as silver unless silver is the base plating.
My own are base plated with white gold made with palladium rather than nickel so there is no yellowish tinge.
This weekend I happened to be at the website of a USA Plating company that does Rhodium plating. They recommend rhodium be applied only 20 to 30 micro inches thick. Their reasoning is that if applied thicker rhodium tends to be brittle and may chip.
I think that we can all now sleep better with the thought that the rhodium on those kits was very thin because that is how it is supposed to be.
What you might want to do if you are concerned, is ask about the base material. It should be a bright metal - silver, platinum, chrome, or palladium come to mind. Silver might be the brightest...but all should be very bright. Side by side, rhodium should be noticeably brighter than chrome but probably not as bright as silver unless silver is the base plating.
My own are base plated with white gold made with palladium rather than nickel so there is no yellowish tinge.