Hi all,
came across this compilation of interesting patination recipes.
While it is by a chemical company who wants to sell you chemicals it
is useful for anyone interested in patinas.
http://www.sciencecompany.com/patinas/patinaformulas.htm
Also remember the patination here at our Ganoksin
Project
http://www.ganoksin.com/borisat/directory/library/subject/25/1
best
charles