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Northwest Africa 7346
Basic information Name: Northwest Africa 7346
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7346
Observed fall: No
Year found: 2009
Country: Morocco
Mass:help 269 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2788 approved meteorites (plus 1 unapproved name) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 27 Jul 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7346 (NWA 7346)

Morocco

Purchased: 2009

Classification: Ordinary chondrite (LL6)

History: Purchased by B. Reed in Tucson, 2009.

Physical characteristics: Single stone, rough, dark weathered exterior, saw cut reveals a heterogeneous texture of light and dark clasts, melt veins, and very finely dispersed metal grains set in a medium gray matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a breccia with a mix of fine-grained, cataclastic zones and larger clasts up to a few mm, scattered remnant chondrules were observed, ubiquitous plagioclase, troilite, and kamacite, metal fresh and unoxidized. The overall texture suggests high shock grade.

Geochemistry: (C. Agee and N. Wilson, UNM) Olivine Fa30.7±1.0, Fe/Mn=62±2, n=19; low-Ca pyroxene Fs25.3±0.5Wo2.2±0.8, Fe/Mn=36±1, n=21; high-Ca pyroxene Fs10.1Wo44.7, Fe/Mn=23, n=1; plagioclase Ab80.3±5.3An13.9±8.1Or6.2±3.4, n=12.

Classification: Ordinary chondrite (LL6), weathering grade W1.

Specimens: 23.7 g including a probe mount on deposit at UNM, Reed holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2009
Mass (g):269.3
Pieces:1
Class:LL6
Weathering grade:W1
Fayalite (mol%):30.7±1.0
Ferrosilite (mol%):25.3±0.5
Wollastonite (mol%):2.2±0.8
Classifier:C. Agee, UNM
Type spec mass (g):23.7
Type spec location:UNM
Main mass:Reed
Comments:Submitted by C. Agee
Institutions
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1466 approved meteorites from Morocco (plus 21 unapproved names) (plus 1 impact crater)

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