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Northwest Africa 11356
Basic information Name: Northwest Africa 11356
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11356
Observed fall: No
Year found: 2017
Country: Morocco
Mass:help 200 kg
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  L4
Recommended:  L4    [explanation]

This is 1 of 1715 approved meteorites (plus 4 unapproved names) classified as L4.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 28 Jun 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11356 (NWA 11356)

Morocco

Purchased: Feb. 2017

Classification: Ordinary chondrite (L4)

History: Purchased by Ke Zuokai in Feb. 2017 from a Moroccan dealer.

Physical characteristics: The meteorite has a black fusion crust and partially covered by weathering products.

Petrography: Chondrules are relatively well-defined with diameters of 0.2-0.6 mm, and display porphyritic olivine-pyroxene/olivine/pyroxene textures. The matrix is recrystallized, and secondary feldspar grains have sizes less than 10mm. Silicate minerals include olivine, pyroxene and feldspar There are abundant metal veins with extensively weathered; few metal grains remain.

Geochemistry: Olivine Fa21.3-22.7 (Fa22.0±0.4, PMD Fa=1.4%, n=14); orthopyroxene Fs17.3-19.9Wo1.1-2.1 (Fs18.8±0.7Wo1.6±0.3, PMD Fs=2.9%, n=15); augite Fs6.8-11.9Wo40.9-44.4 (Fs8.0±1.3Wo43.1±0.9, n=12; feldspar An 9.7-13.0 (An10.7±1.0, n=11).

Classification: L4 based on relatively well-defined chondrules and tiny secondary feldspar

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Beijing China
Date:P Feb. 2017
Mass (g):200000
Pieces:1
Class:L4
Shock stage:S3
Weathering grade:W3
Fayalite (mol%):22.0±0.4 (n=14)
Ferrosilite (mol%):18.8±0.7 (n=15); 8.0±1.3 (n=12)
Wollastonite (mol%):1.6±0.3 (n=15); 43.1±0.9 (n=12)
Classifier:Li Y., PMO
Type spec mass (g):20
Type spec location:PMO
Main mass:Ke Zuokai
Comments:Submitted by Hsu W.
Institutions
   and collections
PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
Find references in NASA ADS:
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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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