Preserving rusted objects when used with precious metals for jewellery

Thank you so much for the Rust Blackening Technique information, the Links and the video, very interesting! I have a great book on Japanese Patinas: JAPANESE PATINAS by Sugimori Eitoku and look forward to trying some of the Patinas contained within in the near future. I have also seen the Japanese Brown and Tiffany Green Patinas used on metal before and there are some very similar Patinas that are used in Stained Glass work as well. Thank you once again for sharing, I really do appreciate it!