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Pitwak Mine (Pitwik Mine), Ladjuar Medam (Lajur Madan; Lapis-lazuli Mine; Lapis-lazuli deposit), Sar-e Sang (Sar Sang; Sary Sang), Koksha Valley (Kokscha Valley; Kokcha Valley), Khash & Kuran Wa Munjan Districts, Badakhshan Province (Badakshan Province; Badahsan Province), Afghanistan

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 37° North , 71° East (est.)
Margin of Error:~1km
Locality type:Mine
Köppen climate type:Dsb : Warm, dry-summer continental climate


This place cannot be located with certainty.

Pitwik (Pitwak) is one of mines around Lajuar Madan in Sar-e-sang and most of the better gem yellow or well crystallized scapolites come from there Dudley Blauwet (2013) (priv. comm.). See: http://www.mindat.org/photo-728825.html

The orthoclase pseudomorphs after marialite are sometimes blue. So far the blue has avoided identification. Please see: http://www.mindat.org/mesg-105-318134.html

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Pitwak Mine, Koksha Valley (Kokscha Valley; Kokcha Valley), Khash & Kuran Wa Munjan Districts, Badakhshan Province (Badakshan Province; Badahsan Province), Afghanistan

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Habit: Crystalline to crude xls
Colour: white
Description: PXRD confirmed
Reference: John Attard (2014) Private Communication
Diopside
Formula: CaMgSi2O6
Habit: crude prisms
Colour: greenish white
Fluorescence: none
Description: PXRD confirmed
Reference: John Attard (2014) Private Communication
Haüyne ?
Formula: (Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
Colour: blue
Fluorescence: none
Description: Marialite pseudomorphs to blue: Lazurite?, sodalite? Hauyne? afghanite? or trace Fe impurities. see: http://www.mindat.org/mesg-105-318134.html
Reference: John Attard PXRD
'Lazurite' ?
Formula: Na6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
Colour: blue
Fluorescence: none
Description: Marialite pseudomorphs to blue: Lazurite?, sodalite? Hauyne? afghanite? or trace Fe impurities. see: http://www.mindat.org/mesg-105-318134.html
Reference: John Attard PXRD
Marialite
Formula: Na4Al3Si9O24Cl
Habit: Tetragonal prisms, pyramids and pinacoid
Colour: white
Description: Marialite is the only confirmed (PXRD) scapolite and it Fluoresces bright yellow under long wave UV. All of these scapolites have altered partially or completely to orthoclase.
Reference: http://www.mindat.org/mesg-105-318134.html
Meionite
Formula: Ca4Al6Si6O24CO3
Colour: White
Fluorescence: Strong yellow
Description: Meionites and Meionites pseudomorphing to Lazurite. Probed by Bart Cannon, but incorrectly interpreted by Rob Woodside These Marialites have altered, some completely, some partially to Orthoclase. Surviving Marialite has a bright yellow long wave fluorescence.
Reference: Thames Valley Minerals Specimen, RWMW collection
Orthoclase
Formula: K(AlSi3O8)
Habit: Excellent sharp scapolite xls altered to a cherty looking orthoclase
Colour: off white with iron staining
Description: Orthoclase (PXRD confirmed) pseudomorphs after excellent scapolite xls. The blue in these xls is either sodalite or lazurite
Reference: RWMW Collection
'Scapolite'
Habit: Tetragonal Prisms , pyramidal faces, and pinacoid
Colour: white grey, blue
Fluorescence: bright yellow if any marialite left
Description: Marialite is the only confirmed (PXRD) Scapolite from here. The surviving marialite is bright yellow under long wave UV. However, these scapolites are altering to Orthoclase which does not fluoresce. Some of these orthoclase pseudomorphs after scapolite are quite blue. Because this is from Sar-e-Sang, one immediately thinks this due to a blue feldspathoid. If this feldspathoid exists it is below the detection limits of PXRD and EDS. Apparently tiny Fe impurities can turn feldspar blue http://www.mindat.org/mesg-105-318134.html
Reference: TVM Specimen http://www.mindat.org/mesg-105-318134.html
Sodalite ?
Formula: Na8(Al6Si6O24)Cl2
Description: Marialite pseudomorphs to orthoclase with blue: Lazurite?, sodalite? Hauyne? afghanite? or trace Fe impurities? see: http://www.mindat.org/mesg-105-318134.html
Reference: TVM Specimen

List of minerals arranged by Strunz 10th Edition classification

Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
'Diopside'9.DA.15CaMgSi2O6
'Haüyne' ?9.FB.10(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
'Lazurite' ?9.FB.10Na6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
'Marialite'9.FB.15Na4Al3Si9O24Cl
'Meionite' ?9.FB.15Ca4Al6Si6O24CO3
'Orthoclase'9.FA.30K(AlSi3O8)
'Sodalite' ?9.FB.10Na8(Al6Si6O24)Cl2
Unclassified Minerals, Rocks, etc.
'Scapolite'-

List of minerals arranged by Dana 8th Edition classification

Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Orthoclase76.1.1.1K(AlSi3O8)
Al-Si Framework Feldspathoids and related species
Haüyne ?76.2.3.3(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
'Lazurite' ?76.2.3.4Na6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
Sodalite ?76.2.3.1Na8(Al6Si6O24)Cl2
Al-Si Framework with other Be/Al/Si frameworks
Marialite76.3.1.1Na4Al3Si9O24Cl
Unclassified Minerals, Rocks, etc.
Meionite ?-Ca4Al6Si6O24CO3
'Scapolite'-

List of minerals for each chemical element

HHydrogen
H LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
CCarbon
C MeioniteCa4Al6Si6O24CO3
OOxygen
O AlbiteNa(AlSi3O8)
O DiopsideCaMgSi2O6
O Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
O LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
O MarialiteNa4Al3Si9O24Cl
O MeioniteCa4Al6Si6O24CO3
O OrthoclaseK(AlSi3O8)
O SodaliteNa8(Al6Si6O24)Cl2
NaSodium
Na AlbiteNa(AlSi3O8)
Na Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
Na LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
Na MarialiteNa4Al3Si9O24Cl
Na MeioniteCa4Al6Si6O24CO3
Na SodaliteNa8(Al6Si6O24)Cl2
MgMagnesium
Mg DiopsideCaMgSi2O6
AlAluminium
Al AlbiteNa(AlSi3O8)
Al Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
Al LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
Al MarialiteNa4Al3Si9O24Cl
Al MeioniteCa4Al6Si6O24CO3
Al OrthoclaseK(AlSi3O8)
Al SodaliteNa8(Al6Si6O24)Cl2
SiSilicon
Si AlbiteNa(AlSi3O8)
Si DiopsideCaMgSi2O6
Si Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
Si LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
Si MarialiteNa4Al3Si9O24Cl
Si MeioniteCa4Al6Si6O24CO3
Si OrthoclaseK(AlSi3O8)
Si SodaliteNa8(Al6Si6O24)Cl2
SSulfur
S Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
S LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
S MeioniteCa4Al6Si6O24CO3
ClChlorine
Cl Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
Cl LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
Cl MarialiteNa4Al3Si9O24Cl
Cl MeioniteCa4Al6Si6O24CO3
Cl SodaliteNa8(Al6Si6O24)Cl2
KPotassium
K Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
K OrthoclaseK(AlSi3O8)
CaCalcium
Ca DiopsideCaMgSi2O6
Ca Haüyne(Na,K)3(Ca,Na)(Al3Si3O12)(SO4,S,Cl)
Ca LazuriteNa6Ca2(Al6Si6O24)(SO4,S,S2, S3,Cl,OH)2
Ca MeioniteCa4Al6Si6O24CO3

References

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Specimens discovered and listed since 2000, various dealer sites, show reports.


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