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Northwest Africa 11532
Basic information Name: Northwest Africa 11532
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11532
Observed fall: No
Year found: 2017
Country: Algeria
Mass:help 70 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 201 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 18 Dec 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11532 (NWA 11532)

Algeria

Purchased: 2017

Classification: Lunar meteorite (feldspathic breccia)

History: Several small pieces totaling 70 g were found in Algeria. They were purchased by Decker Meteorite-Museum in 2017 from a Moroccan dealer.

Petrography: (A.-K. Kraemer and A. Bischoff, IfP) Breccia composed of small angular anorthite-rich lithic and mineral fragments embedded in a fine-grained clastic matrix. The sample also contains abundant impact melt clasts and some areas with maskelynite. Observed minerals include anorthite, olivine, low-Ca pyroxene, Ca-rich pyroxene, silica polymorph, Al-Ti-Cr-spinel, kamacite, ilmenite, and troilite.

Geochemistry: Mineral composition and geochemistry: (A.-K. Kraemer and A. Bischoff, IfP) Olivine (mean: Fa36.1, range: Fa8.4-99.8, Fe/Mn = 87; N = 20), low-Ca pyroxene (mean Fs31.4Wo10.8, range: Fs20.6-64.3Wo2-24, Fe/Mn = 57, N = 18), Ca-rich pyroxene (mean: Fs38.2Wo41.2; Fe/Mn = 69; N = 6), anorthite (mean: An95.4Or0.2, N = 20).

Data from:
  MB106
  Table 0
  Line 0:
Origin or pseudonym:Desert
Date:P 2017
Mass (g):70
Pieces:several
Class:Lunar (feldsp. breccia)
Shock stage:moderate
Weathering grade:moderate
Fayalite (mol%):36.1±21.2 (n=20)
Ferrosilite (mol%):31.4±10.1 (n=18)
Wollastonite (mol%):10.8±6.8 (n=18)
Classifier:A.-K. Kraemer and A. Bischoff, IfP
Type spec mass (g):15.8
Type spec location:IfP
Main mass:54.2 g Decker Meteorite-Museum
Finder:unknown
Comments:Comments: Work name: “DE-2017/02 Lunar”; submitted by Samuel Ebert; submitted by Ebert Samuel
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.
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1017 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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