Hurry and respond before the April 4 deadline! The U.S. Mint wants the public’s thoughts and suggestions regarding what metals to use for producing the currency of the future. Personally, I’m pulling for tungsten, or anything that glows in the dark, really.
The United States Mint today announced that it is requesting public comment from all interested persons on factors to be considered in conducting research for alternative metallic coinage materials for the production of all circulating coins.
These factors include, but are not limited to, the effect of new metallic coinage materials on the current suppliers of coinage materials; the acceptability of new metallic coinage materials, including physical, chemical, metallurgical and technical characteristics; metallic material, fabrication, minting, and distribution costs; metallic material availability and sources of raw metals; coinability; durability; sorting, handling, packaging and vending machines; appearance; risks to the environment and public safety; resistance to counterfeiting; commercial and public acceptance; and any other factors considered to be appropriate and in the public interest.
The recently enacted Coin Modernization, Oversight, and Continuity Act of 2010 (Public Law 111-302) gives the United States Mint research and development authority to conduct studies for alternative metallic coinage materials.

