Abstract/Description: Ag - Mohs Hardness: 2 1/2 - 3. Using a process called sputtering, silver, along with other optically transparent layers, is applied to glass (including automobile windshields) creating low emissivity coatings used in high performance insulated glazing. Hundreds of millions of square meters of silver coated glass is created every year, leading to a consumption of 100 metric tons per year. Mexico is the world's top producer of silver.
Subject(s): Colorado, United States
environmental sciences