Meteoritical Bulletin: Entry for Northwest Africa 8227

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Northwest Africa 8227

Basic information

Name: Northwest Africa 8227
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8227
Observed fall: No
Year found: 2013
Country: (Northwest Africa)
Mass: 153 g

Classification
history:

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

This is 1 of 6493 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 19 Feb 2015

Writeup

Writeup from MB 104:

Northwest Africa 8227 (NWA 8227)

(Northwest Africa)

Purchased: 2013 Dec

Classification: Ordinary chondrite (H4)

History: Purchased by Adam Aaronson in Temara, Morocco, in December 2013.

Petrography: (A. Irving and S. Kuehner, UWS) Well-developed chondrules in a matrix rich in stained metal. Most chondrules are relatively small, but some have diameters up to 3 mm.

Geochemistry: Olivine (Fa_19.4-19.5, N = 3), orthopyroxene (Fs_17.1-17.4Wo_0.9-1.0, N = 2), augite (Fs_5.3-6.5Wo_47.1-46.3, N = 2).

Classification: Ordinary chondrite (H4).

Specimens: 20.1 g including one polished thin section at UWB. The remainder is held by Aaronson.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Temara
Date:	P 2013 Dec
Mass (g):	153
Pieces:	1
Class:	H4
Shock stage:	S2
Weathering grade:	W1
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	20.1
Type spec location:	UWB
Main mass:	A. Aaronson
Comments:	M1643; submitted by A. Irving

Institutions
and collections

UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)

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:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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