URGENT MESSAGE: Time is running out. Click here to find out why.
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for Educators
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsUsersBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Sar-e-Sang River, 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

This page is currently not sponsored. Click here to sponsor this page.
Key
Lock Map
Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 36° North , 70° East (est.)
Margin of Error:~3km
Locality type:River
Köppen climate type:ET : Tundra


About 5 Km from Ladjuar Medan there is a skarn marble horizon cut through by the Sar-e-Sang River, very close to where it flows into the Koksha River. This gives deposits on both banks of the Sar-e-Sang River. (Dudley Blauwet (2013)Priv. Comm.) That horizon contains Haüyne, both green and blue and partially replaced by Gonnardite. Fine Marialites and Pargasites occur associated with the Haüyne.

A small number of light green Haüyne specimens were recovered in 2008 from here. Only recently was it noted that there is a very minor alteration to gonnardite on at least one of them. By 2009 the blue Haüynes with gonnardite replacement were being recovered. A few specimens of Pargasite soon followed and by 2013 a Pargasite with dark green Haüyne was found. Also in that find were the dark green Haüynes showing a slight colour change with the Haüyne being greener, the bluer the light source. This happens to a lesser extent with the earlier lighter green Haüynes

Like the Baffin Island green "lazurite" this light green Haüyne has a cell edge of 9.05 A. The problem is that no natural sulfide dominant Lazurite has ever been observed. They can be synthesized but are unstable. All 'Lazurite' specimens are actually sulfate dominant Haüyne. The specious argument to call some powder patterns Lazurite stems from the observation that sulfide is smaller than sulfate and so Haüynes with small unit cells should have more sulfide, but there is never enough to be sulfide dominant.


Mineral List


12 valid minerals. 1 erroneous literature entry.

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

Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Moore, T.P.,Woodside, R.M.W. (2014): The Sar-e-Sang Lapis Mines, Kuran Wa Munjan district, Badakhshan Province, Afghanistan. Mineralogical Record 45 (3), 280-336.

Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2018, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: July 19, 2018 06:48:11 Page generated: June 18, 2018 07:18:11
Go to top of page