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Northwest Africa 10826
Basic information Name: Northwest Africa 10826
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10826
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 256 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  L3.15
Recommended:  L3.15    [explanation]

This is 1 of 11 approved meteorites classified as L3.15.   [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)
Comments: Approved 10 Oct 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10826 (NWA 10826)

(Northwest Africa)

Purchased: 2015

Classification: Ordinary chondrite (L3.15)

History: Purchased by Gary Fujihara from Morocco, 2015.

Physical characteristics: Single stone, no fusion crust, saw cut shows many densely packed chondrules set in a brown matrix.

Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous porphyritic chondrules, most with mesostasis or glass. Abundant opaque matrix. Apparent mean chondrule diameter 450±250 μm, n=39, and metal abundance consistent with L.

Geochemistry: (C. Agee and M. Spilde, UNM) Chondrule ferroan olivine Fa15.3±8.6, Fe/Mn=42±16, Cr2O3=0.19±0.15 (wt%), n=30; chondrule low-Ca pyroxene Fs14.9±9.6Wo1.4±1.5, Fe/Mn=22±11, n=10.

Classification: Ordinary chondrite (L3.15), subtype 3.15 based on mean values of Fa and Fs and 1-sigma standard deviation, and on the ferroan olivine mean value of Cr2O3 and 1-sigma standard deviation, similar to Bishunpur (3.15) (Grossman and Brearley, 2005).

Specimens: 20.76 g including a probe mount on deposit at UNM, Gary Fujihara 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 2015
Mass (g):255.78
Pieces:1
Class:L3.15
Shock stage:S3
Weathering grade:W2
Fayalite (mol%):15.3±8.6
Ferrosilite (mol%):14.9±9.6
Wollastonite (mol%):1.4±1.5
Classifier:C. Agee, UNM
Type spec mass (g):20.76
Type spec location:UNM
Main mass:Gary Fujihara
Comments:GF-5; 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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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