GALENA
Location: Ebonyi, Kwara, Ogun, Kogi, Ekiti, Plateau, Bauchi, Nasarawa.
Galena, also called lead glance, is the natural mineral form of lead(II) sulfide (PbS). It is the most important ore of lead and an important source of silver.
Galena is one of the most abundant and widely distributed sulfide minerals. It crystallizes in the cubic crystal system often showing octahedral forms. It is often associated with the minerals sphalerite, calcite and fluorite.
Galena is the main ore of lead, used since ancient times, since lead can be smelted from Galena in an ordinary wood fire. Galena typically is found in hydrothermal veins in association with sphalerite, marcasite, chalcopyrite, cerussite, anglesite, dolomite, calcite, quartz, barite, and fluorite. It is also found in association with sphalerite in low-temperature lead-zinc deposits within limestone beds. Minor amounts are found in contact metamorphic zones, in pegmatites, and disseminated in sedimentary rock.
Galena is a very important mineral because it serves as an ore for most of the world’s lead production. It is also a significant ore of silver. Galena has very few uses beyond its service as an ore, but that should not diminish its importance to society.
Modern uses for galena include the use of galena crystals in earlier radio devices. The most frequent use for galena is as a lead ore, and the majority of lead is currently used to produce lead-acid batteries, a necessary component of automobiles. Galena is also very important silver ore.