Meanings (ES + gloss)
galena
A mineral, lead sulphide (PbS), mined as an ore for lead.
1942, G. F. Loughlin, A. H. Koschmann, Geology and Ore Deposits of the Magdalena Mining District, New Mexico, Geological Survey Professional Paper, Issue 200, page 98, The galena o…
You can easily extract lead from galena, a natural mineral which has been used in crystal radio receivers.