Profile: Colonial Metals, Inc. is a supplier of precious metals and precious metal-based chemicals. Our product line spans from metal blacks and sponges through complex & sensitive organometallic compounds. We offer gold, silver, iridium, osmium and platinum. Our precious metal chemical products are used in medical applications such as cis-platin & next generation drugs, anti-arthritic drugs (auranofin) and burn creams (silvadene).