- Joined
- Apr 15, 2023
- Messages
- 113
I had to unfortunately learn the hard way to be VERY thorough looking for ferric metal before processing gold filled material. Everything was marked either 12 or 14k GF and I cut off any clasps. However, when I was done with my first Nitric wash, the solution went from green to brown. Took it off the heat overnight and the next morning rinsed everything well and pulled out anything magnetic. Yes, I fell victim to fleaBay so a couple of the pieces must have been fictitiously marked. The rest of the process went well except I have one angry beaker stained with Iron. Tried dilute nitric to no avail and tried a caustic bath with no result. Any Suggestion ?