blymalm
Blymalm is a historical term that refers to lead ore, specifically galena. Galena, chemically known as lead(II) sulfide (PbS), is the principal ore from which elemental lead is extracted. Historically, the term "blymalm" was used in regions where lead mining was prevalent, often in Northern Europe and the British Isles. The extraction of lead from blymalm has been practiced for millennia, with significant Roman lead production and later extensive mining operations in countries like England, Germany, and Sweden.
The mining and processing of blymalm were crucial industries, providing lead for various applications. Lead was