mineral

Galena-bearing sulfide ore

Galena (lead sulfide, PbS), possibly mixed with pyrite or other sulfides

AI-generated identification · may be incorrect

Dark gray to black, strongly metallic and irregularly crystalline; galena has Mohs hardness 2.5–3, very high specific gravity (~7.5), and perfect cubic cleavage. The bright brassy flecks may indicate pyrite, but the image alone cannot confirm composition.

Identified August 11, 2026More mineral →

Explore Galena-bearing sulfide ore in the encyclopedia →

Identify your own rocks.

Get a report just like this from any photo, free.

App Store Google Play

Physical properties

Formation & geological history

Typically forms in hydrothermal veins and replacement deposits, often with sphalerite, pyrite, chalcopyrite, and quartz; deposits range from Precambrian to younger geological ages.

Uses & applications

Galena is the principal lead ore and historically supplied silver; specimens are collected, but lead-bearing material is unsuitable for jewelry or casual handling and should not be crushed or inhaled.

Geological facts

Its unusually high density is a strong diagnostic clue. Fresh galena shows bright lead-gray metallic faces and cubic cleavage, while weathered surfaces may develop white or gray coatings.

Field identification & locations

Common localities include Missouri and Illinois, USA; Peru; Mexico; Australia; and parts of Europe. Test cautiously for heft, cubic cleavage, and streak—avoid household acid or dust tests; laboratory analysis is needed for identification.