Meteoritical Bulletin: Entry for Bou Kra 008

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Bou Kra 008

Basic information

Name: Bou Kra 008
This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2012
Country: Western Sahara
Mass: 306 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	H4
Recommended:			H4 [explanation]

This is 1 of 6459 approved meteorites (plus 2 unapproved names) classified as H4. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 9 Nov 2015

Writeup

help

Writeup from MB 104:

Bou Kra 008 26°55.950’N, 12°56.440’W

Saguia el Hamra, Western Sahara

Find: 2012 Feb 25, 26

Classification: Ordinary chondrite (H4)

History: Discovered by S. Buhl and A. Koppelt during a natural history expedition at Grart Nwimissiat, Saquia al Hamra on 2012 Feb 25.

Physical characteristics: One brown stone of 304.5 g plus a chunk of 1.7 g; saw-cut shows chondrules set in fine-grained brown groundmass. Magnetic susceptibility log χ (× 10^-9 m³/kg) = 5.17.

Petrography: Microprobe examination of a polished thin section shows well-defined chondrules (porphyritic, barred, radial) up to 1 mm (av. 0.6 mm), chondrule and mineral fragments in recrystallized, brecciated groundmass.

Geochemistry: (R. Bartoschewitz, P. Appel and B. Mader, Kiel) Olivine: Fa_18.2-19.9; av. Fa_18.6±0.37(n=18); pyroxene Fs_16.0-16.6Wo_0.4-1.5; av. Fs_16.3±0.23Wo_1.2±0.41(n=6); kamacite Ni = 3.0-7.1, Co=0.5-0.7 wt.%.

Classification: Ordinary Chondrite (H4) of shock stage S3 and weathering grade W1/2.

Specimens: 23.3 g on deposit at FSAC

Data from:
  MB104
  Table 0
  Line 0:

State/Prov/County:	Saguia el Hamra
Origin or pseudonym:	Grart Nwimissiat, Sakia al Hamra
Date:	2012 Feb 25, 26
Latitude:	26°55.950'N
Longitude:	12°56.440'W
Mass (g):	306.2
Pieces:	2
Class:	H4
Shock stage:	S3
Weathering grade:	W1/2
Fayalite (mol%):	18.6±0.37 (n=18)
Ferrosilite (mol%):	16.3±0.23 (n=6)
Wollastonite (mol%):	1.2±0.41
Magnetic suscept.:	5.17
Classifier:	R. Bartoschewitz; H. Chennaoui Aoudjehane, FSAC
Type spec mass (g):	23.3
Type spec location:	FSAC
Main mass:	A. Koppelt, K. Heinritzi
Finder:	A. Koppelt, S. Buhl
Comments:	Working namse AK2, AK3; submitted by H. Chennaoui Aoudjehane

Institutions
and collections

Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
FSAC: Universite Hassan II Casablanca, Faculte des Sciences Ain Chock, Departement de Géologie, BP 5366 Maârif, Casablanca, Morocco (institutional address; updated 9 Jan 2013)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full

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Geography:

Western Sahara

Western Sahara

Coordinates:
Recommended::	(26° 55' 57"N, 12° 56' 26"W)

Statistics:
This is 1 of 109 approved meteorites from Saguia el Hamra, Western Sahara (plus 1 unapproved name)
This is 1 of 272 approved meteorites from Western Sahara (plus 20 unapproved names)

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