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Northwest Africa 7652
Basic information Name: Northwest Africa 7652
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7652
Observed fall: No
Year found: 2012
Country: Morocco
Mass:help 247 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  L3.6
Recommended:  L3.6    [explanation]

This is 1 of 57 approved meteorites classified as L3.6.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 5 Feb 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 7652 (NWA 7652)

Morocco

Purchased: Aug 2012

Classification: Ordinary chondrite (L3.6)

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

Physical characteristics: Single stone with dark weathered exterior. Saw-cut reveals many densely packed chondrules of variable size, moderately iron stained.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous unequilibrated chondrules, range ~100-2000 μm, ubiquitous troilite, most metal weathered to Fe-oxide.

Geochemistry: (C. Agee and M. Spilde, UNM) Olivine Fa23.4±8.3, Fe/Mn=56±15, Cr2O3=0.07±0.08 wt%, n=31; low-Ca pyroxene Fs9.8±7.6Wo1.2±1.2, Fe/Mn=32±33, n=29.

Classification: Ordinary chondrite (L3.6), mean Fa-content and sigma consistent with type 3.6, low-Ca pyroxene has anomalously low mean Fs-content and high sigma for type 3.6, weathering grade W3.

Specimens: 22 g including a probe mount on deposit at UNM, Adam Bates holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P Aug 2012
Mass (g):247
Pieces:1
Class:L3.6
Weathering grade:W4
Fayalite (mol%):23.4±8.3
Ferrosilite (mol%):9.8±7.6
Wollastonite (mol%):1.2±1.2
Classifier:C. Agee, UNM
Type spec mass (g):22
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. 102, MAPS 50, 1662, September 2015
Find references in NASA ADS:
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1386 approved meteorites from Morocco (plus 16 unapproved names) (plus 1 impact crater)

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