mineral

Galena

Galena (lead sulfide, PbS)

AI-generated identification · may be incorrect

Metallic lead-gray color and luster, commonly cubic cleavage and crystal form; Mohs hardness 2.5–2.75, specific gravity about 7.4–7.6. The specimen appears metallic and likely freshly broken or cut, though the image is insufficient for certainty.

Identified August 15, 2026More mineral →

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Physical properties

Formation & geological history

Forms mainly in hydrothermal veins and replacement deposits, often with sphalerite, pyrite, and quartz; deposits range from Precambrian to Cenozoic in age. It crystallizes in the cubic system.

Uses & applications

Historically the primary ore of lead and an important source of silver; used in batteries, radiation shielding, ammunition, and industrial lead compounds. Attractive crystals are collected but are not generally used as gemstones.

Geological facts

Galena’s exceptionally high density and perfect cubic cleavage are diagnostic. Dust and oxidation products can contain toxic lead, so avoid ingestion and wash hands after handling.

Field identification & locations

Common in the United States, Mexico, Peru, Australia, China, and Poland. Identify by its heavy feel, bright metallic gray color, cubic cleavage, and dark gray streak; confirm with professional testing because other sulfides can resemble it.