Thank you so much for your kind message, i really appreciate it!
I had planned to use silver oxidizer liquid and then polish the rings the way you described, but to be honest once i got the rings soldered together i was so happy and then got afraid that i would somehow mess everything up and avoided extra ‘risk’. Will try it for sure the next time though and i will try out your tip with the boiled egg, somehow it sounds nicer then using the liquid.
The other stone came from this batch:
There weren’t any details about the turquoise at all, except that it probably came from Idar Oberstein in Germany. (On the rare occasion that i am able to find good rough turquoise batches in my country, it almost always came from that place). I’m considering to have some examples tested at some point. Again, thanks for your advice