mineral

Galena (with Matrix)

Lead Sulfide (PbS)

Hardness: 2.5 on Mohs scale; Color: Lead-grey to silvery metallic; Luster: Bright metallic; Crystal System: Isometric (cubic); Cleavage: Perfect cubic in three directions at 90 degrees; Specific Gravity: Very high (7.4-7.6)

Hardness: 2
Color: Lead-grey to silvery metallic
Luster: Bright metallic

Identified July 23, 2026More mineral →

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Physical properties

Formation & geological history

Formed primarily in low to medium temperature hydrothermal veins, as well as contact metamorphic deposits and marine sedimentary rocks (Mississippi Valley-type deposits).

Uses & applications

Primary ore of lead, historically important source of silver, used in electronics, batteries, radiation shielding, and highly sought after by mineral collectors.

Geological facts

Galena is the state mineral of Kansas, Missouri, and Wisconsin. It is exceptionally dense for a non-metallic-looking stone, making its high weight immediately noticeable when held.

Field identification & locations

Identified by its silver-metallic luster, sharp cubic cleavage faces, heavy feel (high specific gravity), and softness. Commonly found in lead-zinc mining districts worldwide such as Missouri (USA), Mexico, and Peru.