What to do if you accidentally melt gold into a platinum piece.
Q: I accidentally melted some gold into my platinum, what do I do?
A: When annealing platinum, it is easy to contaminate the metal by
melting in stray filings, solder chips, or any other metal on the
bench. If this happens, use a ball burr and grind the contamination
away, similar to the way a dentist cleans a cavity. Then…