Meteoritical Bulletin: Entry for Al Haggounia 004

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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: 682 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	CK3
Recommended:			CK3 [explanation]

This is 1 of 86 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

Writeup

help

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 Cimała.

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: Fa_29.4±0.3, n=16; unequilibrated olivine: Fa_12.8±10.2(Fa_2.2-29.1, n=15); low-Ca pyroxene: Fs_23.0±1.6Wo_0.6±0.1(Fs_21.1-24.7Wo_0.4-0.8, n=6); Ca-pyroxene: Fs_18.3Wo_49.2(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

Western Sahara

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

Statistics:
This is 1 of 117 approved meteorites from Saguia el Hamra, Western Sahara (plus 1 unapproved name)
This is 1 of 280 approved meteorites from Western Sahara (plus 20 unapproved names)

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Revision
history:

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