Galena

Galena is a lead-based mineral that is often used in the production of lead-acid batteries. It is also the state mineral of both Missouri and Wisconsin. Galena is most commonly associated with silver, and it is often mined for its silver content as well as its lead content.

Description

Galena is a gray, cubic, brittle mineral that is easily recognized by its high specific gravity. It is a common lead ore, and its high lead content makes it a valuable source of this metal. The mineral is named after the Latin word for lead, galena.

Occurrence

Galena is found in hydrothermal veins in limestones, dolomites and other sedimentary rocks, as well as in medium- to high-temperature metamorphic rocks. It is also found in pegmatites and in large clasts in alluvial deposits.

Uses

The primary use of galena is in the production of lead-acid batteries. It is also used in the manufacture of ammunition, in the production of lead glass, and as a radiation shielding material.

Health effects

Exposure to galena can lead to lead poisoning, which can cause a variety of health problems, including damage to the nervous system and kidneys, and can be fatal in high doses.

See also

• Lead
• Lead-acid battery
• Lead poisoning
• Lead glass
• Radiation shielding

References

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Galena

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  Galena from Huallanca, Bologesi, Ancash, Peru
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  Baryte, Galena, and Pyrite
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  Galena crystal used in a cat's whisker detector