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Northwest Africa 7513
Basic information Name: Northwest Africa 7513
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7513
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 439 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  L3.8
Recommended:  L3.8    [explanation]

This is 1 of 68 approved meteorites classified as L3.8.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 18 Nov 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7513 (NWA 7513)

Morocco

Purchased: Aug 2012

Classification: Ordinary chondrite (L3.8)

History: Purchased by Adam Bates from a meteorite dealer in Morocco, August 2012.

Physical characteristics: Single stone, dark weathered exterior, saw-cut reveals many chondrules and metal/sulfides set in a dark-brown groundmass.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous unequilibrated PO and POP chondrules; iron metal is nearly all oxidized.

Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa24.9±2.4, Fe/Mn=53±4, n=26; low-Ca pyroxene Fs14.9±5.6Wo0.9±0.8, Fe/Mn=30±11, n=29; high-Ca pyroxene Fs13.5±3.1Wo28.9±9.3, Fe/Mn=13±5, n=2.

Classification: Ordinary chondrite (L3.8), weathering grade W3.

Specimens: 21 g including a probe mount on deposit at UNM, Adam Bates holds the main mass.

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P Aug 2012
Mass (g):439
Pieces:1
Class:L3.8
Weathering grade:W3
Fayalite (mol%):24.9±2.4
Ferrosilite (mol%):14.9±5.6
Wollastonite (mol%):0.9±0.8
Classifier:C. Agee, UNM
Type spec mass (g):21
Type spec location:UNM
Main mass:Adam Bates
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 1505 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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