mineral

Likely galena (lead sulfide)

Galena, PbS

AI-generated identification · may be incorrect

Small rounded, metallic gray specimen with bright silver reflections; galena has Mohs hardness 2.5, cubic crystals and perfect cubic cleavage, and is exceptionally dense (specific gravity about 7.4–7.6). The image alone cannot confirm the mineral; similar-looking metallic minerals include hematite and magnetite.

Identified October 13, 2026More mineral →

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Physical properties

Formation & geological history

Galena forms in hydrothermal veins and replacement deposits, commonly with quartz, calcite, sphalerite, and other sulfides; deposits range widely in age. The reported northern New Mexico area has varied geology, so location is only a weak clue without a precise locality.

Uses & applications

Galena is the principal ore of lead, used in lead-acid batteries and radiation shielding; this tiny rounded piece is mainly a curiosity or collector specimen.

Geological facts

Galena’s unusually high density and tendency to break along flat, cubic surfaces are useful clues. Avoid grinding or handling it unnecessarily, wash hands afterward, and keep it away from children because lead is toxic.

Field identification & locations

Check whether it feels unusually heavy and whether a fresh break shows shiny cubic faces; do not scratch or crush it. Common in lead-zinc ore districts worldwide, including parts of New Mexico; a photo cannot establish the identification.