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Garam Chashma, Lutkho Valley, Chitral District (Chitral Valley), Khyber Pakhtunkhwa, Pakistani
Regional Level Types
Garam Chashma- not defined -
Lutkho ValleyValley
Chitral District (Chitral Valley)District
Khyber PakhtunkhwaProvince
PakistanCountry

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Latitude & Longitude (WGS84):
35° 59' 46'' North , 71° 33' 49'' East
Latitude & Longitude (decimal):
Name(s) in local language(s):
Garam Chashma


Located northwest of Chitral town, close to Afghan Border. Used to be a huge trading point for lapis lazuli. Yields aquamarine with some of the deepest blues available. Different mines at different altitudes. Upper one produces the deepest blues. Still relatively unknown location (even among Peshawar sellers!), as local aquamarines are usually labelled as coming from Chitral without more precision.
Large garnets (probably almandine), tangerine to fist-size are not uncommon.
Tourmaline production is very limited, rather small brownish to black crystals embedded in hard matrix.

Regions containing this locality

Eurasian PlateTectonic Plate
AsiaContinent

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


2 valid minerals.

Detailed Mineral List:

Beryl
Formula: Be3Al2(Si6O18)
Reference: Aymeric Longi met in Chitral the owner of two Aqua mines and got information from him.
Beryl var: Aquamarine
Formula: Be3Al2Si6O18
Reference: Aymeric Longi met in Chitral the owner of two Aqua mines and got information from him.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Aymeric Longi met in Chitral the owner of two Aqua mines and got information from him.
'Mica Group'
Reference: Aymeric Longi met in Chitral the owner of two Aqua mines and got information from him.
Quartz
Formula: SiO2
Reference: Aymeric Longi met in Chitral the owner of two Aqua mines and got information from him.
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Aymeric Longi talked with the owner of two Garam Chashma Mines, who happed to be as well the president of the local gems association.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 9 - Silicates
Beryl9.CJ.05Be3Al2(Si6O18)
var: Aquamarine9.CJ.05Be3Al2Si6O18
Unclassified Minerals, Rocks, etc.
'Garnet Group'-X3Z2(SiO4)3
'Mica Group'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Beryl
var: Aquamarine
-Be3Al2Si6O18
'Garnet Group'-X3Z2(SiO4)3
'Mica Group'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z

List of minerals for each chemical element

BeBeryllium
Be Beryl (var: Aquamarine)Be3Al2Si6O18
Be BerylBe3Al2(Si6O18)
BBoron
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
OOxygen
O Beryl (var: Aquamarine)Be3Al2Si6O18
O QuartzSiO2
O Garnet GroupX3Z2(SiO4)3
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
O BerylBe3Al2(Si6O18)
AlAluminium
Al Beryl (var: Aquamarine)Be3Al2Si6O18
Al BerylBe3Al2(Si6O18)
SiSilicon
Si Beryl (var: Aquamarine)Be3Al2Si6O18
Si QuartzSiO2
Si Garnet GroupX3Z2(SiO4)3
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
Si BerylBe3Al2(Si6O18)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Late Paleozoic
251.902 - 358.9 Ma



ID: 3191462
Paleozoic sedimentary rocks

Age: Phanerozoic (251.902 - 358.9 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


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