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Al Haggounia 004
Basic information Name: Al Haggounia 004
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2015
Country: Western Sahara
Mass:help 682 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  CK3
Recommended:  CK3    [explanation]

This is 1 of 43 approved meteorites classified as CK3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites
Comments: Approved 7 Jun 2016
Writeuphelp
Writeup from MB 105:

Al Haggounia 004        27°6’24’’N, 12°1’36’’W

Saguia el Hamra, Western Sahara

Find: 15 Jan 2015

Classification: Carbonaceous chondrite (CK3)

History: Four brownish fragments were found by Mr. Zaid Balli at Ouad Ouinaght and subsequently purchased by Marcin Cimala.

Physical characteristics: The meteorite shows a strongly altered brownish-orange sawn surface.

Petrography: The meteorite is composed of separated and clearly defined chondrules set into abundant olivine-rich matrix. Few chondrules contain compositionally unequilibrated olivine and less abundant low-Ca pyroxene. Throughout the matrix olivine is equilibrated. Cr-bearing magnetite and intermediate plagioclase are abundant in the matrix; accessories include Ca-pyroxene, pyrrhotite and troilite.

Geochemistry: Equilibrated matrix olivine: Fa29.4±0.3, n=16; unequilibrated olivine: Fa12.8±10.2 (Fa2.2-29.1, n=15); low-Ca pyroxene: Fs23.0±1.6Wo0.6±0.1 (Fs21.1-24.7Wo0.4-0.8, n=6); Ca-pyroxene: Fs18.3Wo49.2 (N=2); C2O3 in magnetite: 3.8 wt% (N=4)

Data from:
  MB105
  Table 0
  Line 0:
State/Prov/County:Saguia el Hamra
Date:15 Jan 2015
Latitude:27°6'24''N
Longitude:12°1'36''W
Mass (g):682
Pieces:4
Class:CK3
Shock stage:medium
Weathering grade:high
Fayalite (mol%):29.4; 12.8
Ferrosilite (mol%):23
Wollastonite (mol%):0.6
Classifier:A. Greshake, MNB
Type spec mass (g):24.4
Type spec location:MNB
Main mass:Marcin Cimala
Finder:Mr. Zaid Balli
Comments:Submitted by Ansgar Greshake
Institutions
   and collections
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography:

Western Sahara
Coordinates:
     Recommended::   (27° 6' 24"N, 12° 1' 36"W)

Statistics:
     This is 1 of 87 approved meteorites from Saguia el Hamra, Western Sahara (plus 1 unapproved name)
     This is 1 of 210 approved meteorites from Western Sahara (plus 20 unapproved names)
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