Liver of Sulphur is provided in lump form. Dissolve several lumps in hot water to make an oxidizing solution that will darken silver, copper, brass, and bronze. To bring out the details in your work, oxidize with Liver of Sulphur solution, then remove the oxidation from the high areas with our Fiber Hand Pads. This will leave a darker color in the recessed areas and give your piece a slightly "antiqued" look. Provided in a 1/2 lb. can.