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

var: Cleavelandite
var: Oligoclase

17 entries listed. 12 valid minerals.

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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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