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Al Haggounia 001
Basic information Name: Al Haggounia 001
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2006
Country: Western Sahara
Mass:help 3 t
Classification
  history:
Meteoritical Bulletin:  MB 92  (2007)  Aubrite
Recommended:  EL-melt rock    [explanation]

This is 1 of 23 approved meteorites classified as EL-melt rock.   [show all]
Search for other: EL chondrites, Enstatite chondrites, Enstatite chondrites (type 4-7), Enstatite-rich meteorites, and Melted chondrites
Comments: Approved 24 Jul 2007
Revised 1 Sep 2019: Reclassified by Rubin (2016)
Writeuphelp
Writeup from MB 92:

Al Haggounia 001                       N27°30',W12°30'

Al Haggounia, Morocco

Find: 2006

Achondrite (aubrite)

History: Several tons of this material have been found on the ground or by digging near Al Haggounia, Morocco (Chennaoui et al. 2007) for description of the strewn field) and sold to several dealers. The coordinates are given for the center of the strewn field, which extends ~ 40 km.

Physical characteristics: It is impossible to assess precisely the amount of material already (and to be) recovered, but according to dealers, collectors, and Jambon it is about 3 metric tons composing many samples of varied sizes (from a few g to 50 kg). The largest stones were recovered after excavating them from the ground. The outer surface is rusty brown due to severe alteration. Looks like a sedimentary breccia cemented by iron oxide and carbonate. Color changes from bluish gray to rusty brown closest to the fractures are observed. Yellow patches of sulfur (alteration) are widespread. The rocks are significantly porous with pore sizes from several cm to hundreds of microns.

Petrography: (A. Jambon, O. Boudouma and D. Badia. UPVI) Dominated by enstatite and plagioclase. Troilite, graphite daubreelite, oldhamite, kamacite rich in Si and schreibersite are present.

Mineral compositions: Enstatite (En98Fs1Wo1) and plagioclase (Ab78An16Or5).

Classification: Achondrite (aubrite); extensive weathering. Similar to and likely paired with NWA 002, 1067, 2736, 2828, 2965.

Type specimens: A total of 50 g of sample and three polished sections are on deposit at UPVI.

Main masses: Beroud, 3886 g (26 pieces from 1185 g to 5.8 g); PThomas, 4497 g (33 pieces from 11 to 1507 g); Hmani, about 500 kg; Ouzrou, about 500 kg.


Writeup from MB 108:
Al Haggounia 001: reclassification

Rubin (2016) reclassified Al Haggounia 001 and paired specimens as "vesicular, incompletely melted, EL chondrite impact melt rock[s]."
Bibliography:
  • Rubin A.E. (2016) Impact melting of the largest known enstatite meteorite: Al Haggounia 001, a fossil EL chondrite. Meteorit. Planet. Sci. 51 1576-1587. (link)
Data from:
  MB92
  Table 1
  Line 22:
State/Prov/County:All Haggounia, Morocco
Date:2006
Latitude:27°30'N
Longitude:12°30E
Mass (g):~ 3 metric tons
Pieces:Many
Class:Aub
Institutions
   and collections
UPVI: Université Pierre et Marie Curie (Paris VI),Case 110, 4 Place Jussieu, 75005 Paris, France (institutional address; updated 5 Oct 2014)
Beroud: F. Beroud, Chatel-Guyon, France; Website (private address)
Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address)
Ouzrou: M. Ait Ouzrou, 29 Av Ouad Souss, Complexe Tamelalt, 8000 Agadir, Morocco (private address)
PThomas: Philippe Thomas, Meteoritica, La Chave, 07690 St André en Vivarais, France (private address)
Catalogs:
Search for this meteorite in the Museo Nazionale dell'Antartide database (Siena, Italy):   
References: Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Don Edwards   
Matteo Chinellato   
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Geography:

Western Sahara
Coordinates:
     Recommended::   (27° 30'N, 12° 30'W)

Statistics:
     This is 1 of 105 approved meteorites from Saguia el Hamra, Western Sahara
     This is 1 of 259 approved meteorites from Western Sahara (plus 20 unapproved names)
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