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Poshtuk, Central District, Mahneshan County, Zanjan Province, Irani
Regional Level Types
PoshtukVillage
Central DistrictDistrict
Mahneshan CountyCounty
Zanjan ProvinceProvince
IranCountry

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Latitude & Longitude (WGS84):
36° 41' 58'' North , 47° 38' 53'' East
Latitude & Longitude (decimal):
36.69972,47.64806
GRN:
N25E28
Type:
Village
Köppen climate type:
Dsa : Hot, dry-summer continental climate
Mindat Locality ID:
459980
Long-form identifier:
mindat:1:2:459980:0
GUID (UUID V4):
0


Staurolite-chloritoid schists (metapelitic rocks).

The dominant metamorphic assemblage consists of garnet, staurolite, chloritoid, chlorite, muscovite and quartz. This assemblage grew mainly syntectonically during a later contact metamorphic event. Peak metamorphic conditions of this event took place at 580 °C and ~3–4 kbar, thus under high-temperature and low-pressure conditions (HT/LP metamorphism).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


4 valid minerals.

Detailed Mineral List:

ⓘ 'Chlorite Group'
ⓘ Chloritoid
Formula: Fe2+Al2O(SiO4)(OH)2
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Quartz
Formula: SiO2
ⓘ Staurolite
Formula: Fe2+2Al9Si4O23(OH)

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 9 - Silicates
ⓘStaurolite9.AF.30Fe2+2Al9Si4O23(OH)
ⓘChloritoid9.AF.85Fe2+Al2O(SiO4)(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ StauroliteFe22+Al9Si4O23(OH)
OOxygen
Oⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ QuartzSiO2
Oⓘ StauroliteFe22+Al9Si4O23(OH)
Oⓘ Garnet GroupX3Z2(SiO4)3
AlAluminium
Alⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ StauroliteFe22+Al9Si4O23(OH)
SiSilicon
Siⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ StauroliteFe22+Al9Si4O23(OH)
Siⓘ Garnet GroupX3Z2(SiO4)3
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
Feⓘ ChloritoidFe2+Al2O(SiO4)(OH)2
Feⓘ StauroliteFe22+Al9Si4O23(OH)

Other Regions, Features and Areas containing this locality

AsiaContinent
Eurasian PlateTectonic Plate
Indian Plate (India Plate)

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

SAKI, ADEL, MOAZZEN, MOHSSEN, OBERHÄNSLI, ROLAND (2012) Mineral chemistry and thermobarometry of the staurolite-chloritoid schists from Poshtuk, NW Iran. Geological Magazine, 149 (6) 1077-1088 doi:10.1017/s0016756812000209
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