mineral
Galena
Lead sulfide (PbS)
AI-generated identification · may be incorrectMohs hardness 2.5, metallic lead-gray color, bright metallic luster, cubic crystal system, perfect cubic cleavage, very high specific gravity around 7.4-7.6.
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Physical properties
Mohs hardness 2.5, metallic lead-gray color, bright metallic luster, cubic crystal system, perfect cubic cleavage, very high specific gravity around 7.4-7.6.
Formation & geological history
Forms in hydrothermal veins associated with limestone, commonly precipitated from warm mineral-rich aqueous solutions.
Uses & applications
Primary ore of lead, historically used for glazes, bullets, and lead-acid batteries, and collected by mineral enthusiasts.
Geological facts
Galena exhibits distinct cubic cleavage and a very high density relative to its size, often found alongside sphalerite and pyrite.
Field identification & locations
Easily identified by its heavy weight, bright metallic luster, and distinct right-angle cubic cleavage fragments; found globally with major deposits in the USA, Mexico, and Germany.
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