<prompt> Powdered gold is marketed as:Williams E-Z goldMorgans E-Z goldRoberts E-Z goldTaggarts E-Z gold  <response>: Powdered gold is made by a combination of chemical precipitation and atomization, with an average particle size of 15 mm.The atomized particles are mixed together in wax, cut into pieces, and wrapped in No. 4 or No. 3 foil. Several sizes of these pellets are available. This product is marketed as Williams E-Z Gold Ivoclar-Williams, Amherst, NY.Sturdevants Art and Science of Operative Dentistry. Edition 6. Page: e-158 