Rainbow patina

I continue my experiments with natural materials in electroplating.

I mastered the process of electrochemical patination.

This is similar to the process of electroplating - 

electric power supply + electrolyte 

(composition of the solution is different from the copper plating electrolyte). 

Depending on the solution temperature and immersion time the leaves are painted in a rainbow of colors - 

from golden to dark purple.

rainbow jewelry

I have not yet learned how to control this process, 

so each new detail has a unique coloring.

And it's very interesting :)