Meteoritical Bulletin: Entry for Northwest Africa 8353

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Northwest Africa 8353

Basic information

Name: Northwest Africa 8353
This is an OFFICIAL meteorite name.
Abbreviation: NWA 8353
Observed fall: No
Year found: 2014
Country: (Northwest Africa)
Mass: 82.4 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	Achondrite-ung
Recommended:			Achondrite-ung [explanation]

This is 1 of 151 approved meteorites classified as Achondrite-ung. [show all]
Search for other: Achondrites, Ungrouped achondrites

Comments:

Approved 13 Aug 2016

Writeup

help

Writeup from MB 105:

Northwest Africa 8353 (NWA 8353)

(Northwest Africa)

Purchased: 2014 Nov

Classification: Ungrouped achondrite

History: Purchased by Scott Perekslis in November 2014 from a dealer in Erfoud, Morocco.

Physical characteristics: A green and gray, relatively coarse grained stone (82.37 g) with partial green fusion crust. Plagioclase has a macroscopic "frosty" luster.

Petrography: (A. Irving and S. Kuehner, UWS) Gabbro composed mainly of diopside and calcic plagioclase with subordinate forsteritic olivine and accessory iron sulfide and kamacite (mostly as blebs within plagioclase). Plagioclase consists of numerous microdomains.

Geochemistry: Olivine Fa_3.0-3.2,FeO/MnO 35-42 (N = 3), diopside Fs_1.2-1.4Wo_45.6-45.4, FeO/MnO 9-10 (N = 3), plagioclase An_90.1-90.4Or₀(N = 2).

Classification: Achondrite (ungrouped). Paired with NWA 7325, NWA 8014, NWA 8409 and other stones from the Bir Abbas site.

Specimens: 16.5 g including one polished endcut at UWB; remainder with Mr. S. Perekslis.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Erfoud
Date:	P 2014 Nov
Mass (g):	82.37
Pieces:	1
Class:	Achondrite-ung
Shock stage:	high
Weathering grade:	moderate
Fayalite (mol%):	3.0-3.2
Ferrosilite (mol%):	1.2-1.4
Wollastonite (mol%):	45.6-45.4
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	16.5
Type spec location:	UWB
Main mass:	S. Perekslis
Comments:	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)

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:

Coordinates:

Unknown.

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

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Revision
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