mineral

Galena (likely)

Galena, lead sulfide (PbS)

AI-generated identification · may be incorrect

Small, metallic, lead-gray specimen with bright reflective surfaces and blocky cleavage, consistent with galena. Galena has Mohs hardness 2.5, cubic crystals, perfect cubic cleavage, and high specific gravity (~7.4–7.6).

Identified October 4, 2026More mineral →

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Physical properties

Formation & geological history

Forms in hydrothermal veins and sedimentary replacement deposits, commonly with sphalerite, calcite, or quartz. Such deposits occur in rocks of many geological ages; the specimen’s age cannot be determined from the image.

Uses & applications

Galena is the principal ore of lead, historically used in lead products and as a semiconductor mineral; attractive crystals are collected. Lead-bearing material is toxic, so avoid dust and wash hands after handling.

Geological facts

Its unusually high density and lead-gray metallic luster are characteristic. The image is not detailed enough to confirm the identification; other metallic sulfide minerals can look similar.

Field identification & locations

Check for exceptional heft, soft scratchability, and cleavage into shiny cubic fragments; avoid destructive tests on an unknown specimen. Galena is found worldwide, including major deposits in the United States, Australia, and Europe.