A patina such as you described can be achieved by heating your
finished silver piece in hot water and brushing on liver of sulfur,
rinsing and re-applying the liver of sulfur. You may have to repeat
this process several times. If you rinse quickly, your piece will more
gradually go through several color morphs, gold, magenta and blues and
finally dark grays. The colors are frequently multi-colored rather
than uniform…part of the charm and serendipity of this technique.
Since These patinas are difficult to control and can change quickly,
if I have than one piece, e.g., earrings, I find that it’s best to
patinate both pieces at the same time. It’s almost impossible to get
the same level of patination on two pieces separately treated.
As soon as you achieve the color you want, rinse well and dry the
piece. Be sure to use rubber gloves and work in a well ventilated
area. Long term, these color will likely change if unprotected. I’ve
had some success spraying pieces with Nikolas Clear Lacquer. However,
with some of the magentas, you may notice a change of color.
I’m interested in hearing about any other techniques to color silver.