RockVault
Galena

Image: <bdi><a href="https://www.wikidata.org/wiki/Q56247090" class="extiw" title="d:Q56247090"><span title="mineral collector and dealer">Robert M. Lavinsky</span></a></bdi> (CC BY-SA 3.0)

cubiccommonSulfides

Galena

PbS

This specimen showcases large, mirror-bright, metallic gray galena crystals with distinct stepped faces, intergrown with numerous translucent, pointed quartz crystals.

Galena Physical Properties

Mohs Hardness

2.5

Crystal System

cubic

Luster

metallic

Streak Color

lead gray

Cleavage

perfect cubic (three directions at 90 degrees)

Fracture

subconchoidal

Specific Gravity

7.4

Colors

lead-gray, silvery-gray

Transparency

opaque

Type Locality

Borieva mine, Madan ore field, Rhodope Mts, Smolyan Oblast, Bulgaria

Mineral Group

Sulfides

Uses

lead ore, industrial, collector

Associated Minerals

quartz

Rarity

common

Geological Context

Galena commonly forms in hydrothermal veins, often associated with other sulfide minerals, within various host rocks such as limestones and dolomites. It is the primary ore mineral for lead.