Meteoritical Bulletin: Entry for Northwest Africa 11129

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Northwest Africa 11129

Basic information

Name: Northwest Africa 11129
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11129
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 51 g

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	Lodranite
Recommended:			Lodranite [explanation]

This is 1 of 91 approved meteorites classified as Lodranite. [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites

Comments:

Approved 14 Mar 2017

Writeup

Writeup from MB 106:

Northwest Africa 11129 (NWA 11129)

(Northwest Africa)

Purchased: 2016 Sep

Classification: Primitive achondrite (Lodranite)

History: Purchased by Aras Jonikas in September 2016 from a Moroccan dealer. The find site for paired stones including NWA 8251 has been reported to be near Jrifiya.

Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular mineral grains of olivine, orthopyroxene, clinopyroxene with accessory Cr-rich chromite, altered low-Ni kamacite and troilite in a sparse finer grained matrix.

Geochemistry: Olivine (Fa_11.3-11.5, FeO/MnO = 32-33, N = 3), orthopyroxene (Fs_9.8-9.9Wo_1.7-2.3, FeO/MnO = 25-31, N = 3), clinopyroxene (Fs_4.4-4.5Wo_44.1-43.2, N = 2).

Classification: Lodranite (breccia). Paired with NWA 8118, NWA 8216 and NWA 8251.

Specimens: A 10.8 g polished endcut is at PSF; remainder with Mr. A. Jonikas.

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2016 Sep
Mass (g):	50.98
Pieces:	1
Class:	Lodranite
Shock stage:	low
Weathering grade:	low
Fayalite (mol%):	11.3-11.4
Ferrosilite (mol%):	9.8-9.9; 4.4-4.5
Wollastonite (mol%):	44.1-43.2
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	10.8
Type spec location:	PSF
Main mass:	A. Jonikas
Comments:	AJ16-17; 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)

Catalogs:

References:

Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Solar Anamnesis

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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