Precious Metal Clay referred to as PMC is one of the most remarkable developments in silver and gold metal working since lost wax casting was developed thousands of years ago. This product is manufactured by Mitsubishi Materials Corporation and is available in fine silver 0.999 and 24K gold. It is composed of microscopic metal particles a nontoxic organic binder and water. It looks feels and is shaped just like potters clay but after firing all that is left is solid precious metal. show more