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Northwest Africa 11434
Basic information Name: Northwest Africa 11434
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11434
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 2.19 kg
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  L5
Recommended:  L5    [explanation]

This is 1 of 7227 approved meteorites (plus 4 unapproved names) classified as L5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 11 Sep 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11434 (NWA 11434)

(Northwest Africa)

Purchased: 2016 Feb

Classification: Ordinary chondrite (L5)

Petrography: (K. Metzler, IfP) Shock-darkened ordinary chondrite with moderately recrystallized texture, showing clearly visible chondrules of various petrologic types. Secondary feldspar grains <50 μm.

Geochemistry: Mineral compositions and geochemistry: Mean olivine composition Fa24.0±0.3; (n=13). Mean low-Ca pyroxene composition Fs19.8±0.3Wo2.6±0.8 (n=11)

Classification: L chondrite based on mineral chemistry. Petrologic type 5 based on the equilibrated state of olivine and pyroxene, clear visibility of chondrules and grain size of secondary plagioclase.

Data from:
  MB106
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2016 Feb
Mass (g):2192
Pieces:1
Class:L5
Shock stage:S4
Weathering grade:W0-1
Fayalite (mol%):24.0±0.3
Ferrosilite (mol%):19.8±0.3
Wollastonite (mol%):2.6±0.8
Classifier:K. Metzler, IfP
Type spec mass (g):20
Type spec location:IfP
Main mass:Mirko Graul, Bernau, Germany
Comments:Submitted by K. Metzler, IfP
Institutions
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
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: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7937 approved meteorites from (Northwest Africa) (plus 1960 unapproved names)

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