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Northwest Africa 7429
Basic information Name: Northwest Africa 7429
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7429
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 5.44 kg
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  L4
Recommended:  L4    [explanation]

This is 1 of 1646 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 12 Sep 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7429 (NWA 7429)

Morocco

Purchased: May 2012

Classification: Ordinary chondrite (L4)

History: Purchased by Sean Tutorow from Morocco, May 2012.

Physical characteristics: One complete stone, dark brown exterior, saw cut reveals a few chondrules and scattered fine-grained metal set in a brown matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows BO, POP, PO chondrules up to 1500 μm, ubiquitous troilite, kamacite, and feldspathic glass, no stoichiometric plagioclase detected, pervasive weathering veinlets.

Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa23.8±1.3, Fe/Mn=52±4, n=21; low-Ca pyroxene Fs19.2±2.2Wo1.5±0.8, Fe/Mn=34±8, n=21.

Classification: Ordinary chondrite (L4), weathering grade W3.

Specimens: 28.84 g including a probe mount on deposit at UNM; Sean Tutorow holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P May 2012
Mass (g):5440
Pieces:1
Class:L4
Weathering grade:W3
Fayalite (mol%):23.8±1.3
Ferrosilite (mol%):19.2±2.2
Wollastonite (mol%):1.5±0.8
Classifier:C. Agee, UNM
Type spec mass (g):28.84
Type spec location:UNM
Main mass:Sean Tutorow
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)
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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