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Northwest Africa 5377
Basic information Name: Northwest Africa 5377
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 5377
Observed fall: No
Year found: 2008
Country: Morocco
Mass:help 22 g
Classification
  history:
Meteoritical Bulletin:  MB 102  (2013)  C3-ung
Recommended:  C3-ung    [explanation]

This is 1 of 18 approved meteorites classified as C3-ung.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), and Ungrouped chondrites
Comments: Approved 2 Jul 2013
Writeuphelp
Writeup from MB 102:

Northwest Africa 5377 (NWA 5377)

Morocco

Purchased: 2008

Classification: Carbonaceous chondrite (C3, ungrouped)

History: Purchased by Aziz Habibi in Erfoud, Morocco, 2008.

Physical characteristics: Single stone

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows dominant (~75% volume) fine-grained matrix, chondrule size 50-200 μm.

Geochemistry: (A. Greshake, MNB) Olivine mean Fa11.3, range Fa0.2-46.5; low-Ca pyroxene mean Fs4.4, range Fs1.2-10.2. (Karen Ziegler, UNM) Oxygen isotope mean values of 7 analyses on 3 acid-washed aliquots of bulk sample, 1.2, 1.8, 1.6 mg, gave δ17O= -9.481,-9.274, -9.282, δ18O= -6.467, -6.155, -5.726, Δ17O= -6.067, -6.025, -6.259 (linearized, all permil).

Classification: Carbonaceous chondrite (ungrouped), oxygen isotope values are significantly outside the range and lower than CO3, but on the CCAM, shock grade S2, weathering grade W2.

Specimens: 5 g on deposit at MNB, probe mount at UNM. Aziz Habibi holds the main mass.

Data from:
  MB102
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2008
Mass (g):22
Pieces:1
Class:C3-ung
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):11.3
Ferrosilite (mol%):4.4
Classifier:C. Agee, UNM
Type spec mass (g):5
Type spec location:MNB
Main mass:Aziz Habibi
Comments:Submitted by C. Agee
Plots: O isotopes:  
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1611 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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