mineral
Galena
Lead sulfide (PbS)
AI-generated identification · may be incorrectHardness of 2.5 on the Mohs scale, metallic luster, lead-gray color, and perfect cubic cleavage with high specific gravity.
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Physical properties
Hardness of 2.5 on the Mohs scale, metallic luster, lead-gray color, and perfect cubic cleavage with high specific gravity.
Formation & geological history
Forms in hydrothermal veins associated with limestone, commonly precipitated from warm aqueous solutions at moderate temperatures.
Uses & applications
Primary ore of lead, historically used in ceramics, glazes, batteries, and early crystal radio detectors.
Geological facts
Galena has a high density and will readily mark paper with a grayish-black streak.
Field identification & locations
Identified easily by its heavy weight, metallic silver luster, and distinct cubic crystal habit. Found worldwide, notably in Mississippi Valley-type deposits.
