Testing silver and gold

In this video, we show several further methods for testing silver and gold, using our imitation gold and silver ingots.
1) Nitric acid test
2) Magnet test
3) Scratch test

[@massimilianoilardi3571]

Nn si capisce nulla di cosa vuoi fare booo

[@mouneshamounesha5348]

👌 sir.put the procedure for making silver Sir

[@fnc_antaryami]

what chemical is that