Meteoritical Bulletin: Entry for Northwest Africa 8138

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Northwest Africa 8138

Basic information

Name: Northwest Africa 8138
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8138
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass: 67.8 g

Classification
history:

Meteoritical Bulletin:	MB 103	(2014)	H6
Recommended:			H6 [explanation]

This is 1 of 6826 approved meteorites (plus 6 unapproved names) classified as H6. [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 15 Feb 2014

Writeup

Writeup from MB 103:

Northwest Africa 8138 (NWA 8138)

(Northwest Africa)

Purchased: 2013 Apr

Classification: Ordinary chondrite (H6)

History: Purchased by F. Kuntz in April 2013 from a dealer in Zagora, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Relatively fresh specimen containing sparse remnant chondrules and stained, holly-leaf shaped metal grains in a coarse recrystallized matrix. Minerals are olivine, orthopyroxene, augite, sodic plagioclase, chromite, kamacite and troilite.

Geochemistry: Olivine (Fa_18.3-18.4), orthopyroxene (Fs_16.0-16.4Wo_1.7-1.8), augite (Fs_5.5-5.8Wo_45.9-46.0).

Classification: Ordinary chondrite (H6).

Specimens: 14.02 g including one polished thin section at PSF; remainder with. Kuntz.

Data from:
  MB103
  Table 0
  Line 0:

Place of purchase:	Zagora
Date:	P 2013 Apr
Mass (g):	67.8
Pieces:	1
Class:	H6
Shock stage:	S2
Weathering grade:	W1
Fayalite (mol%):	18.3-18.4
Ferrosilite (mol%):	16.0-16.4
Wollastonite (mol%):	1.7-1.8
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	14.02
Type spec location:	PSF
Main mass:	F. Kuntz
Comments:	K200; submitted by P. Sipiera

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)
Kuntz: Fabien Kuntz, France; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full

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Photos:

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

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)

Also see:

This lists the most popular meteorites among people who looked up this meteorite.

Revision
history:

This lists important revisions made to data for this record.

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