RockVault
Galena

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cubiccommonSulfides

Galena

PbS

This specimen features lustrous, lead-gray galena crystals, likely exhibiting their characteristic cubic or octahedral forms, growing on or with white quartz crystals. The metallic luster of galena contrasts with the vitreous luster of quartz.

Galena Physical Properties

Mohs Hardness

2.5

Crystal System

cubic

Luster

metallic

Streak Color

lead-gray

Cleavage

perfect cubic

Fracture

uneven

Specific Gravity

7.5

Colors

lead-gray

Transparency

opaque

Type Locality

Neudorf, Harzgerode mining district, Harz, Saxony-Anhalt, Germany

Mineral Group

Sulfides

Uses

lead ore, silver ore, collector specimens

Associated Minerals

quartz, sphalerite, pyrite, chalcopyrite, fluorite, calcite, barite

Rarity

common

Geological Context

Galena typically forms in hydrothermal veins, often associated with other sulfide minerals, and is the most important ore mineral of lead. It can also be found in contact metamorphic deposits and sedimentary rocks.