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Korgal pegmatite field (Korghal; Kurghal), Nuristan District, Nuristan Province (Nurestan Province; Nooristan Province; Nuristan), Afghanistan
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Elbaite
Korgal pegmatite field, Nuristan District, Nuristan Province, Afghanistan

Photo: H. Obodda
Latitude: 35°4'4"N
Longitude: 70°18'21"E
 
 
The deposits consist of Cs-Rb-Li-Ta-Nb-rich pegmatite veins, embedded in proterozoic crystalline schist and garnet-sillimanite-biotite gneiss (Bariand & Poullen 1978). Individual veins are hundreds of meters long and up to 50 m thick. The Kurghal pegmatite, for which the field is named, was mined for some time around 1995. Among other species, it produced green tourmaline (Orris & Bliss, 2002).

The grid reference is centered on the field.

Mineral List

Albite
var: Cleavelandite
var: Oligoclase
Beryl
Cassiterite
Elbaite
Eosphorite
Lepidolite
Microcline
Muscovite
Pollucite
Quartz
Schorl
Spodumene
'Tantalite'
Tantalite-(Mn)
'Tourmaline'


17 entries listed. 13 valid minerals.

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References

Bariand, P. and Poullen, J.F. (1978): Famous mineral localities: The pegmatites of Laghman - Nuristan - Afghanistan. Mineralogical Record 9, 301-308.

Orris, G.J., and Bliss, J.D. (2002): Mines and Mineral Occurrences of Afghanistan. United States Geological Survey Open-File Report 02-110.


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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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