Galena

Galena is a common mineral that is found all over the world. It forms in veins associated with other sulfide minerals, in hydrothermal environments associated with silver, in low-temperature contact metamorphic deposits, pegmatites and in some sedimentary rocks. Galena that forms in the hydrothermal environments is often associated with silver and often has a significant amount of silver incorporated into the galena making it an important ore of silver as well as lead. The name galena comes from the Latin word galena which means 'lead ore'.

Chemical Formula:

PbS

Mineral Class:

Sulfide

Crystal System:

Isometric

Symmetry:

4/m -3 2/m

Hardness:

2.5

Specific Gravity:

7.4-7.6

Cleavage:

{001} perfect, {010} perfect, {100} perfect

Fracture:

Brittle

Color:

Gray

Streak:

Gray

Luster:

Metallic

Transparency:

Opaque

Common Habits:

Massive, euhedral

Other Properties:

Notable Localities:

Saxony, Germany; Bohemia, Czech Republic; Cumbria, England; Broken Hill, Australia; Viburnum Trend, Missouri

Uses:

Ore of lead, silver, sulfur

Associated Minerals:

Sphalerite, pyrite, marcasite, chalcopyrite, cerussite, anglesite, dolomite, calcite, quartz, barite, fluorite

Specimens:


Galena
Kray, Russia


Galena
Hardin Co., IL


Galena
Reynolds Co., MO


Galena
Chihuahua, Mexico


Galena
Galena, KS


Galena
Viburnam Trend, MO


Galena
Durham, England


Galena
D7047


Galena
D7054