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Barrel Polishing Gemstones


#1

Hi all

I was wondering what is the softest stone (using Mohs Hardness
scale) I can put into my barrel polisher/tumbler (containing
stainless steel shot) after I have set it in 925 silver?

Cubic Zirconia is fine, but are there any other constraints I need
to know about?

Many thanks
Nafeeseh