We use traditional jewelry making metals, also known as precious or noble metals in the workshop. Sterling Silver Gold (yellow, white, rose) Palladium Platinum *Please note: Due to difficulites in the pouring process white gold, palladium and platinum are not available for the Craftsman (melting) workshop. However, white gold, palladium and platinum are available for the Apprentice workshop. We can NOT use titanium, tungsten, stainless steel. etc. -- The process is much different for working in these industrial metals and they require a completely different set of tools and techniques.