Meteoritical Bulletin: Entry for Northwest Africa 7308

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Northwest Africa 7308

Basic information

Name: Northwest Africa 7308
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7308
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass: 264 g

Classification
history:

Meteoritical Bulletin:	MB 101	(2012)	LL3
Recommended:			LL3 [explanation]

This is 1 of 462 approved meteorites classified as LL3. [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 23 Oct 2012

Writeup

Writeup from MB 101:

Northwest Africa 7308 (NWA 7308)

(Northwest Africa)

Purchased: 2012 Feb

Classification: Ordinary chondrite (LL3)

History: Purchased by Gary Fujihara in February 2012 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: Closely-packed, medium to large chondrules with some interstitial altered metal.

Geochemistry: Olivine (Fa_19.6-40.1; Cr₂O₃ in ferroan examples is 0.03-0.05 wt.%, mean 0.04 wt.%, s.d. 0.01 wt.%, N = 6), orthopyroxene (Fs_4.2-22.4Wo_0.2-1.0), subcalcic augite (Fs_17.7-18.2Wo_35.3-32.9).

Classification: Ordinary chondrite (LL3).

Data from:
  MB101
  Table 0
  Line 0:

Place of purchase:	Tucson
Date:	P 2012 Feb
Mass (g):	264
Pieces:	1
Class:	LL3
Shock stage:	S2
Weathering grade:	W1/2
Fayalite (mol%):	19.6-40.1
Ferrosilite (mol%):	4.2-22.4
Wollastonite (mol%):	0.2-1.0
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	20
Type spec location:	UWB
Main mass:	G. Fujihara
Comments:	GF12-3; 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, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015

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Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Aeroliths Collection Theodossiou

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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