Precious Clay ans Glassfusing Jewlery tools Sold out Watch this product and we will notify you once it is back in stock. The product is now watched We will notify you once the product is back in stock again. E-mail Watch this product Your personal information is processed in accordance with our privacy policy. Liver of Sulphur - 6 ml Liver of Sulphur is used on ArtClay silver, bronce clay, copper clay, and sterling silver for oxidation. Gives metalls a black oxidatetd surface.