It can take a little time, days even, but it's very cool. Liver of Sulfur You probably already know about using liver of sulfur to darken your metal jewelry designs (copper and silver, but not so much brass).I've heard that reheating the egg can help but I've also heard it doesn't help at all–I've never tried reheating it so I can't comment on that part! Simply make a solution of hot water and liver of sulfur and dip your jewelry in it (or use the Midas Gel version).
If you love altering the look of metals by creating patinas on them as much as I do, you'll love our gorgeous book Patina: 300 Coloration Effects for Jewelers and Metalsmiths.It's packed with patina recipes and hundreds of beautiful sample images of colorful effects you can create on silver, copper, and brass as well as aluminum, bronze, and steel. We have also compiled a patina kit for those of you who really love creating patinas!Submerge your metal in the wet sawdust, seal it, and set overnight (or just a few hours in sunlight, which speeds the process).Let the pieces air dry and brush off any excess sawdust with a soft brush. Kerry recommends sealing the patinated metal with Permalac.Flame Painting Rainbows I'm also a big fan of the beauty of raku-like rainbow colors that can appear on copper when you heat it just the right way, sometimes known as flame painting.
This piece was flame painted by Mary Hettmansperger in her wire-weaving DVD. You can give areas of your copper passes with a torch flame and see what effect that gives you, or heat the entire piece, quench, and check out your results. Many folks love the warm hue of the metal as it is (me included), but it's also the metal master of disguise in the gorgeous patinas it so easily takes on.Of all the alternative metals, copper is definitely my favorite.Or, you can mix alternative metals in Baldwin's . It creates a gunmetal effect, not colorful, but it's handy when you're combining metals.There seems to be an unlimited number of gorgeous patinas that you can create on metal.One of Kerry's great ideas for creating a pretty verdigris green on copper and brass (her sample is shown on the left) is with vinegar and sawdust, the fine shavings of which she says gives "an almost crystalline sheen to the surface of the metal that reminds me of The Emerald City in The Wizard of Oz." Yes, please!