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 non-toxic organic binder and water. It looks, feels and is shaped just like potter's clay but after firing all that is left is solid precious metal.