Company Description. Skyline Assayers & Laboratories, originally established as Hawley and Hawley Assayers & Chemists, has been providing high-quality analytical services to the Copper Industry for over 70 years. Based in Tucson, Arizona, Skyline is recognized as an industry leader in base metal, ferrous and non-ferrous analysis, including ore-grade assays and umpire assays of metallurgical products. Skyline, operating under Arizona Assayers Inc....
