See Also

Galena

Galena is a lead Lead

Lead is a chemical element [i] in the periodic table [i] that has the symbol Pb and atomic number [i] ... 

 ore Ore

An ore is a volume of rock [i] containing components or minerals [i] in a mode of occurrence which ... 

. This article describes Galena's mineral properties. In its chemically Chemistry

Chemistry is the science [i] of matter [i] at the atom [i]ic to molecular [i] scale, dealing primarily ... 

 purified form, galena is known as lead sulfide Lead(II) sulfide

Lead sulfide is a chemical compound [i] , most often purified from the mineral [i] galena [i]. ... 

; refer to that article for chemical and industrial uses. Galena is one of the most abundant and widely distributed sulfide minerals, and is the most common ore of lead Lead

Lead is a chemical element [i] in the periodic table [i] that has the symbol Pb and atomic number [i] ... 

. Crystals are usually cubic, sometimes octahedral Octahedron

An octahedron is a polyhedron [i] with eight faces. ... 

. It is often associated with the minerals sphalerite Sphalerite

Sphalerite is a mineral [i] that is the chief ore [i] of zinc [i]. ... 

 and fluorite Fluorite

Fluorite is a mineral [i] composed of calcium fluoride [i], CaF2. ... 

. Galena deposits sometimes contain significant amounts of silver Silver

Silver is a chemical element [i] with the symbol Ag . ... 

 as an impurity, and these galenas have long been the most important ore of silver in mining Mining

Mining is the extraction of valuable [i] mineral [i]s or other geological [i] materials f ... 

.

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Encyclopedia

Galena
General
CategoryMineral Mineral

Minerals are natural compounds formed through geological [i] processes. ... 

Chemical formula Chemical formula

A chemical formula is a concise way of expressing information about the atom [i]s that constitute a par ... 

lead Lead

Lead is a chemical element [i] in the periodic table [i] that has the symbol Pb and atomic number [i] ... 

 sulfide
Identification
Colour Lead gray, silvery
Crystal habit Crystal habit

In mineralogy [i], shape and size give rise to descriptive terms applied to the typical appearance, or habi... 

 
Cubes, tabular and sometimes skeletal crystals
Crystal system Crystal structure

In mineralogy [i] and crystallography [i], a crystal structure is a unique arrangement of atoms in a crystal [i] ... 

 
Isometric hexoctahedral
Cleavage Cubic
Fracture Flat to even
Mohs Scale hardness 2.5 - 2.75
Luster Metallic
Refractive index Opaque
Pleochroism None
Streak Mineral

Minerals are natural compounds formed through geological [i] processes. ... 

Lead gray
Specific gravity 7.4 - 7.6
Fusibility 2

Galena is a lead Lead

Lead is a chemical element [i] in the periodic table [i] that has the symbol Pb and atomic number [i] ... 

 ore Ore

An ore is a volume of rock [i] containing components or minerals [i] in a mode of occurrence which ... 

. This article describes Galena's mineral properties. In its chemically Chemistry

Chemistry is the science [i] of matter [i] at the atom [i]ic to molecular [i] scale, dealing primarily ... 

 purified form, galena is known as lead sulfide Lead(II) sulfide

Lead sulfide is a chemical compound [i] , most often purified from the mineral [i] galena [i]. ... 

; refer to that article for chemical and industrial uses.

Galena is one of the most abundant and widely distributed sulfide minerals, and is the most common ore of lead Lead

Lead is a chemical element [i] in the periodic table [i] that has the symbol Pb and atomic number [i] ... 

. Crystals are usually cubic, sometimes octahedral Octahedron

An octahedron is a polyhedron [i] with eight faces. ... 

. It is often associated with the minerals sphalerite Sphalerite

Sphalerite is a mineral [i] that is the chief ore [i] of zinc [i]. ... 

 and fluorite Fluorite

Fluorite is a mineral [i] composed of calcium fluoride [i], CaF2. ... 

. Galena deposits sometimes contain significant amounts of silver Silver

Silver is a chemical element [i] with the symbol Ag . ... 

 as an impurity, and these galenas have long been the most important ore of silver in mining Mining

Mining is the extraction of valuable [i] mineral [i]s or other geological [i] materials f ... 

.



Galena deposits are found in France France

France, officially the French Republic, is a country [i] whose metropolitan territory [i] ... 

, Romania Romania

Romania: is a country in Southeastern Europe [i]. ... 

, Austria Austria

Austria is a landlocked [i] country in central Europe [i]. ... 

, Belgium Belgium

The Kingdom of Belgium is a country in northwest Europe [i] bordered by the Netherlands [i] ... 

, Italy Italy

Italy, officially the Italian Republic , is a Southern European [i] country. ... 

, Spain Spain

Spain, officially the Kingdom of Spain , is a Europe [i]an parliamentary monarchy [i].... 

, Scotland Scotland

Scotland is a nation [i] in northwest Europe [i] and one of the constituent [i] countries [i] ... 

, England England

England is the largest and most populous constituent country [i] of the United Kingdom [i]. ... 

, Australia Australia

Australia, officially the Commonwealth of Australia, is a country in the Southern Hemisphere [i] c ... 

, and Mexico Mexico

The United Mexican States, generally known as Mexico is a country [i] located in North America [i] ... 

. In the United States United States

The United States of America, also known as the United States, the U.S., the U.S.A., a... 

 it occurs in Missouri Missouri

Missouri named after the Missouri Siouan [i] Indian tribe meaning "town of the large canoes", is a cent... 

, Illinois Illinois

Illinois is the 21st U.S. state [i] and is located in the Midwest [i] region o ... 

, Iowa Iowa

Iowa is a Midwest [i] state [i] of the United States [i]. ... 

, Kansas Kansas

Kansas is a Midwestern [i] state [i] in the Central [i] United States [i] ... 

, Oklahoma Oklahoma

Name = Oklahoma |
Fullname = State of Oklahoma |
... 

, Colorado Colorado

Colorado is a state [i] in the western United States [i].... 

, Idaho Idaho

Idaho is a state [i] in the Pacific Northwest [i] of the United States [i]. ... 

, Utah Utah

Utah is a U.S. state [i] located in the western [i] United States [i]. ... 

, Montana Montana



Montana is a state [i] in the Pacific Northwest [i] and Great Plains [i] regions of the United States [i]... 

, and Wisconsin Wisconsin

Wisconsin is a state [i] in the United States [i], located in the Midwest [i].... 

.
Galena is the official state mineral of Missouri Missouri

Missouri named after the Missouri Siouan [i] Indian tribe meaning "town of the large canoes", is a cent... 

 and Wisconsin Wisconsin

Wisconsin is a state [i] in the United States [i], located in the Midwest [i].... 

, USA United States

The United States of America, also known as the United States, the U.S., the U.S.A., a... 

. Galena also occurs at Mount Hermon Mount Hermon

Mount Hermon is a mountain [i] in the Anti-Lebanon [i] mountain range [i]. ... 

 in Northern Israel Israel

Israel , officially the State of Israel, is a country in Western Asia [i] on the so ... 

. In ancient Israel it was used to colour eyes blue.

Uses

Galena was once used as a semiconductor Semiconductor

A semiconductor is a material with electrical conductivity [i] that is intermediate between that of an ... 

  in crystal radio sets Crystal radio receiver

[i] consisting of a variable [[LC circuit|LC]... 

; combined with a safety pin or similar sharp wire , the galena crystal became part of a point-contact diode Diode

In electronics [i], a diode is a component [i] that restricts the direction of mov... 

 used to detect radio signals.

See also

  • List of minerals List of minerals

    This is a List of mineral [i]s for which there are Wikipedia articles. ... 

  • The Lead Belt, a major galena mining region in Missouri Missouri

    Missouri named after the Missouri Siouan [i] Indian tribe meaning "town of the large canoes", is a cent... 

    .
  • lead Lead

    Lead is a chemical element [i] in the periodic table [i] that has the symbol Pb and atomic number [i] ... 

  • Lead sulfide Lead(II) sulfide

    Lead sulfide is a chemical compound [i] , most often purified from the mineral [i] galena [i]. ... 



External links

  • entry for galena
  • entry for lead
  • mineral deposits