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Northwest Africa 11407
Basic information Name: Northwest Africa 11407
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11407
Observed fall: No
Year found: 2017
Country: Algeria
Mass:help 700 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 312 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 11 Sep 2017
Writeuphelp
Writeup from MB 106:

Northwest Africa 11407 (NWA 11407)

Algeria

Purchased: 2017

Classification: Lunar meteorite (feldspathic breccia)

History: Some pieces totaling 700 g were found in Algeria. 207 g were purchased by Decker Meteorite-Museum in 2017 from a Moroccan dealer.

Petrography characteristics: (A.-K. Kraemer and A. Bischoff, IfP) Breccia composed of angular anorthite-rich lithic and mineral fragments embedded in a fine-grained clastic matrix. The sample also contains shock-melted areas. Observed minerals include anorthite, olivine, low-Ca pyroxene, Ca-rich pyroxene, silica polymorph, Al-Ti-chromite, kamacite, ilmenite, troilite, and pendlandite. Some Ba-sulfates indicate terrestrial alteration.

Geochemistry: Mineral compositions and geochemistry: Olivine (mean: Fa28.8, Fe/Mn = 93; N = 49), low-Ca pyroxene (mean Fs25.8Wo7.6, Fe/Mn = 59, N = 30), Ca-rich pyroxene (mean: Fs17.0Wo39.4; Fe/Mn = 58; N = 12), anorthite (mean An96.0Or0.1, N = 25).

Classification: Lunar (feldspathic breccia).

Specimens: 20.7 g including one polished thin section, IfP; 207 g with Decker Meteorite-Museum.

Data from:
  MB106
  Table 0
  Line 0:
Origin or pseudonym:Desert
Place of purchase:Morocco
Date:P 2017
Mass (g):700
Pieces:several
Class:Lunar (feldsp. breccia)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):28.8±13.2(15.6-85.5, n=49)
Ferrosilite (mol%):25.8±10.1 (15.6-50.3, n=30)
Wollastonite (mol%):7.6±6.7 (2-23, n=30)
Classifier:A.-K. Kraemer and A. Bischoff, IfP
Type spec mass (g):20.7
Type spec location:IfP
Main mass:anonymous; 207 g Decker Meteorite-Museum
Finder:anonymous
Comments:Work name: “DE-2017/01-Lunar”; submitted by Samuel Ebert; submitted by Ebert S.
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:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1270 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters)

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