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Hassi Bou Talha
Basic information Name: Hassi Bou Talha
     This is an OFFICIAL meteorite name.
Abbreviation: HBT 001
Observed fall: No
Year found: 2016
Country: Morocco
Mass:help 308 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-pmict
Recommended:  Eucrite-pmict    [explanation]

This is 1 of 408 approved meteorites classified as Eucrite-pmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 26 Nov 2016
Writeuphelp
Writeup from MB 105:

Hassi Bou Talha        28.112°N, 9.890°W

South, Morocco

Find: 2016 Apr 2

Classification: HED achondrite (Eucrite, polymict)

History: Found by a Moroccan prospecting team, 41 km S of Aouinet Lahna, 59 km NWW of Zag and 71 km SW of Assa, Morocco, and subsequently acquired by Fabien Kuntz.

Physical characteristics: A single broken stone (308 g) lacking fusion crust and exhibiting a fine-grained, gray interior.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of sparse lithic clasts (with subophitic to microgabbroic textures) and abundant crystal debris in a finer grained matrix. Minerals are exsolved pigeonite (of several different bulk compositions), calcic plagioclase, silica polymorph, chromite, ilmenite, troilite, rare zircon (as grains up to 30 μm across) and minor secondary calcite.

Geochemistry: Orthopyroxene host A (Fs52.9Wo4.02, FeO/MnO = 28), clinopyroxene exsolution lamella A (Fs18.4Wo44.4, FeO/MnO = 21), low-Ca pyroxene host B (Fs34.2Wo5.8, FeO/MnO = 29), clinopyroxene exsolution lamella B (Fs14.1Wo41.5, FeO/MnO = 21).

Classification: Eucrite (polymict breccia).

Specimens: 20.55 g including one polished thin section at PSF; remainder with Kuntz.

Data from:
  MB105
  Table 0
  Line 0:
State/Prov/County:South
Date:2016 Apr 2
Latitude:28.112°N
Longitude:9.890°W
Mass (g):308
Pieces:1
Class:Eucrite-pmict
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):52.9; 18.4; 34.2; 14.1
Wollastonite (mol%):4.02; 44.4; 5.8; 41.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):20.55
Type spec location:PSF
Main mass:F. Kuntz
Comments:K296; submitted by A. Irving
Institutions
   and collections
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Mike Markowitz   
Ryan Upchurch   
Geography:

Morocco
Coordinates:
     Recommended::   (28° 6' 43"N, 9° 53' 24"W)

Statistics:
     This is 1 of 43 approved meteorites from South, Morocco
     This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)
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Synonymshelp: Hassi Bou Talha 001 (First meteorite in DCA)
Revision
  history:
  This lists important revisions made to data for this record.

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