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Northwest Africa 10669
Basic information Name: Northwest Africa 10669
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10669
Observed fall: No
Year found: 2016
Country: Morocco
Mass:help 265 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  LL3
Recommended:  LL3    [explanation]

This is 1 of 365 approved meteorites classified as LL3.   [show all]
Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 17 May 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10669 (NWA 10669)

Morocco

Purchased: 2016

Classification: Ordinary chondrite (LL3)

History: Purchased from Mr. Adnan Chafai, Zagora, Morocco in January 2016.

Physical characteristics: A single stone with no fusion crust, orange-brown oxidized surface with some desert caliche. A saw cut reveals numerous, densely packed, mm-sized chondrules, some up to 4 mm, set in an orange-brown matrix.

Petrography: (C. Agee, UNM) This meteorite has many porphyritic chondrules, with mesostasis or glass, set in an opaque matrix.

Geochemistry: (C. Agee and M. Spilde, UNM) Chondrule olivine Fa21.7?10.7, Fe/Mn=65±25, Cr2O3=0.07±0.05 (wt%), n=27; low-Ca pyroxene Fs11.5±8.7Wo1.4±1.3, Fe/Mn=25±14, n=20; aluminous augite Fs4.0±0.1Wo37.6±1.3, Fe/Mn=2±0, Al2O3=4.4±0.4 (wt%), n=2.

Classification: Ordinary chondrite (LL3), likely in the range type 3.4 to 3.2 based on Cr2O3 mean value in ferroan olivine which is similar to Chainpur and GRO 95502 (Grossman and Brearley, 2005).

Specimens: 48.2 g on deposit at BajaAO, 2.4 g including a probe mount at UNM, ZKereszty holds the main mass.

Bibliography:
  • Grossman J.N. and Brearley A.J. (2005) The onset of metamorphism in ordinary and carbonaceous chondrites. Meteorit. Planet. Sci. 40, 87-122. (link)
Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016
Mass (g):265.3
Pieces:1
Class:LL3
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):21.7±10.7
Ferrosilite (mol%):11.5±8.7
Wollastonite (mol%):1.4±1.3
Classifier:C. Agee, UNM
Type spec mass (g):48.2
Type spec location:BajaAO
Main mass:ZKereszty
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)
BajaAO: Baja Astronomical Observatory H-6500 Baja, Szegedi ut KT. 766, Hungary; Website (institutional address; updated 3 Oct 2014)
ZKereszty: Gyor, Lahner 1. 9024 , Hungary (private address; updated 8 Sep 2014)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Solar Anamnesis               
Zsolt Kereszty   
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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