Acid etching 24K gold

Greetings, Does anyone knoow how too acid 24K gold? Whast Kretchner
did with a bunch of his pieces?

Thanks! Kennon Young Vermont Gem Lab

Greetings, Does anyone knoow how too acid 24K gold? Whast
Kretchner did with a bunch of his pieces? 

Wouldn’t that be using aqua regia? Scary stuff that. CIA

You might want to look into electric etching with salt solutions.
I’ve not played with it but I think you can etch almost any metal
with the right solution and resist.

As mentioned above aqua Regia is a gold etchant

starting point…

voltage require would be fairly low. around 1 volt or so off the top
of my head - but then it’s decades since I looked at electropotential
tables.