mineral

Likely galena (lead sulfide)

Galena, PbS

AI-generated identification · may be incorrect

The small specimen appears metallic silver-gray with blocky cleavage faces, consistent with galena. Galena has Mohs hardness 2.5, cubic crystals, perfect cubic cleavage, and a very high specific gravity (~7.4–7.6); the photo alone cannot confirm identification.

Identified October 4, 2026More mineral →

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Physical properties

Formation & geological history

Galena forms in hydrothermal veins and carbonate-replacement deposits, commonly with sphalerite and other sulfide minerals. Deposits occur across many geological ages.

Uses & applications

Galena is the principal ore of lead, used in lead-acid batteries, radiation shielding, and some industrial products; attractive crystals are collected, but lead-bearing specimens should be handled carefully.

Geological facts

Its cubic cleavage can produce shiny, right-angled fragments, and its unusually high density is a useful clue.

Field identification & locations

Check for exceptional heft, metallic luster, and cubic cleavage; avoid scratching or handling dust, and wash hands afterward. Common in mining districts worldwide, including the United States, Australia, and Europe.