Galena Extract is a term used to describe the process of extracting LEAD from galena ore. LEAD is a soft, malleable metal that has been used for centuries in a variety of applications, including plumbing, ammunition, and radiation shielding. Galena ore is a naturally occurring mineral composed of LEAD sulfide, and is the primary source of LEAD production in the world. The extraction process involves heating the ore to high temperatures, which causes the LEAD to separate from the other elements. The extracted LEAD is then purified and used in various applications.