I really enjoy this guys vids, he gets such good results with his cleaning methods. Have a watch...
Last edited by ColinD (18 July 2016 12:04 am)
Minelab GPX 4500, Nokta Fors Gold
Better get myself some sawdust and paraffin. The second cleaning of the silver/copper coin was of particular use over just citric acid, and the copper coin conservation was also interesting. Thanks for putting that up Colin.
Prospecting gear: Used - Whites GM3, GM2, GMT, ML XT17000, ML X-Terra 305, Garrett Gold Stinger, Tesoro Vaquero, Nokta RS pinpointer, Minelab Explorer SE Pro/Etrac, Ace 250
Current - XP Deus, Makro Racer 2, Fisher F75, Tesoro Tejon, Teknetics G2, Whites SPP, Garrett Infinium, Minelab Go-Find 60, Minelab Profind, Whites Bullseye TRX, Deteknix X-pointer, Garrett AT Pointer
The acid foil reaction works very well, just tried it this morning on some coins and rings that I couldn't clean any other way. I just substituded the tartaric acid to citric acid and it worked well. Most of the coins were already toasted from being in the ocean but a small silver ring that was not already pitted came up a real treat.
The reaction is quite exothermic almost hot enough to burn so be careful, quite a lot of rotten egg (hydrogen sulphide) gas is expelled during the reaction too and it almost dissolves the foil used.
Minelab GPX 5000, SDC2300, CTX3030, Pro-Find-25, patience, lot's of patience.