Here are some patination sources on the internet. Remember that all patinas are toxic and irritant and should not be worn next to skin unprotected.

There is an article of mine on cupric nitrate patinas.

We sell a technical paper called “Patinas for Small Studios“, information is at:

Brain Press
Box 1624, Ste M, Calgary, Alberta, T2P 2L7, Canada
Tel: 403-263-3955 Fax: 403-283-9053