Who decides the metallic composition of US currency?

The modern penny has the least amount of copper with a small 2.5% copper plating and a 97.5% zinc base. Apr 13, 2019 ... Tamara Rubin is a federal-award-winning independent advocate for consumer goods safety and a documentary filmmaker. She is also a mother of ... The coin was larger and made of pure copper, while today's smaller coin is made of copper and zinc. Liberty stayed on the penny for more than 60 years. In 1857, ... Feb 10, 2025 ... Pennies are mostly made of zinc, and the American zinc lobby has been a major opponent to suggestions that the penny be eliminated. How many ... Jun 26, 2024 ... The answer is both yes and no. While pennies were once made entirely of copper, today's pennies are primarily made of zinc with a thin copper coating. Jun 12, 2020 ... What We're Made Of: Cathie Trotta, Penny Black Media ... What We're Made Of is a Q&A series that looks at how companies in the aviation industry ... Nov 3, 2023 ... This version of the United States penny was struck from a copper-nickel composition that was 88% copper and 12% nickel. This continued until ... The artisan's touch makes it lovely and soft by lightly hammering its surface. A layer of grease revives it, bringing out its natural characteristics. This is ... Dec 20, 2022 ... Mint. Figure 1. United States Penny, 1793. Source: U.S. Mint, “The History of U.S. Circulating Coins,” at. Feb 13, 2025 ... From 100% copper to bronze, briefly steel, gilding metal, and finally the modern copper-plated zinc we find on modern pennies.