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Northwest Africa 8577
Basic information Name: Northwest Africa 8577
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 8577
Observed fall: No
Year found: 2014
Country: Morocco
Mass:help 239 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  CV3-ox
Recommended:  CV3    [explanation]

This is 1 of 536 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 25 Oct 2014
Writeuphelp
Writeup from MB 103:

Northwest Africa 8577 (NWA 8577)

Morocco

Purchased: May 2014

Classification: CV3-ox

Petrography: Ferroan olivine contains 0.09±0.09 wt.% Cr2O3; the meteorite contains abundant fine-grained matrix, about 35 vol.%, consistent with a CV chondrite. It has large chondrules, averaging about 800 μm in diameter, again consistent with CV. Many of the chondrules have igneous rims. Porphyritic and barred olivine chondrules are abundant; RP and C chondrules were not identified (again consistent with a CV classification). Amoeboid olivine inclusions are moderately abundant; several reach 1 mm in maximum dimension. Opaque phases consist of moderately abundant magnetite and sulfide and little metallic Fe-Ni; this indicates that the rock is an oxidized CV chondrite. The meteorite contains a few percent of refractory inclusions; these include several fine-grained inclusions as well as some small CAI fragments in the matrix.

Data from:
  MB103
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P May 2014
Mass (g):238.55
Pieces:18
Class:CV3-ox
Shock stage:S1
Weathering grade:W3
Fayalite (mol%):4.1±2.8 (n=25)
Ferrosilite (mol%):1.4±0.6 (n=12)
Wollastonite (mol%):0.9±0.2
Classifier:A. Rubin, UCLA
Type spec mass (g):20.10
Type spec location:UCLA
Main mass:Sean Tutorow
Comments:Field number - G577. Purchased by Brahim Tahiri from a Moroccan hunter in Erfoud, Morocco and sent to his partner Sean Tutorow for classification.; submitted by Sean Tutorow
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
John A. Shea   
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1488 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater)

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