Meteoritical Bulletin: Entry for Northwest Africa 11159

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Northwest Africa 11159

Basic information

Name: Northwest Africa 11159
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11159
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 10.7 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 4 Mar 2017

Writeup

help

Writeup from MB 106:

Northwest Africa 11159 (NWA 11159)

(Northwest Africa)

Purchased: 2016

Classification: Lunar meteorite (feldspathic breccia)

History: The meteorite was bought in 2016 from a meteorite dealer in Morocco.

Physical characteristics: Small dark-gray to black individual without fusion crust.

Petrography: The meteorite is a fragmental breccia composed of lithic and mineral clasts cemented by a vesicular vitreous groundmass. Lithic clasts include gabbroic, basaltic and melt clasts; mineral clasts are dominantly anorthite, ferroan olivine, pigeonite, Ca-pyroxene and low-Ca pyroxene. Minor phases include ilmenite, fayalite, and FeS.

Geochemistry: olivine: Fa_38.4±9.4(Fa_32.3-59.4, n=20, FeO/MnO=107±15); low-Ca pyroxene: Fs_50.3±12.3Wo_3.4±0.7(Fs_30.3-60.9Wo_2.3-4.7, n=10, FeO/MnO=35±9); pigeonite: Fs_31.2±9.7Wo_11.7±4.1(Fs_20.9-58.3Wo_5.8-19.5, n=22, FeO/MnO=58±5); Ca pyroxene: Fs_7.9±1.6Wo_31.5±2.8(Fs_15.6-21.4Wo_25.5-35.4, n=10, FeO/MnO=45±4); calcic plagioclase: An_97.3±0.5(An_96.4-98.1, n=13)

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2016
Mass (g):	10.7
Pieces:	1
Class:	Lunar (feldsp. breccia)
Shock stage:	moderate
Weathering grade:	moderate
Fayalite (mol%):	38.4
Ferrosilite (mol%):	50.3; 31.2; 7.9
Wollastonite (mol%):	3.4; 9.7; 31.5
Classifier:	A. Greshake, MNB
Type spec mass (g):	2.2
Type spec location:	MNB
Main mass:	Alan Mazur
Comments:	Submitted by Ansgar Greshake

Institutions
and collections

MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 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:

Coordinates:

Unknown.

Statistics:
This is 1 of 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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