right you are, the simple "multimeter" is not sensitive, presisign, enough for electronics. I can't remember the one that was. i'll drag the one out that is. also, accutron had a special meter for that mvt. (I have one of those too). ALSO; I think we have a eleictronics engineer in this forum? OH - how I hate eleictronics ! vin
It comes in many varieties, and many forms. Fundamentally it is rust (or to be more precise iron III oxide), often suspended in wax or other soft medium, or simply in graded powder from. It has been used for centuries to polish precious metals as it is a relatively soft abrasive.
The term "jewelers rouge" is also sometimes used in a more generic form, to indicate any form of jewelers polishing compound, so I've seen people referring to "green rouge" polishing compound etc.