Meteoritical Bulletin: Entry for Northwest Africa 10141

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Northwest Africa 10141

Basic information

Name: Northwest Africa 10141
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10141
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 39 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	Lunar (feldsp. breccia)
Recommended:			Lunar (feldsp. breccia) [explanation]

This is 1 of 336 approved meteorites classified as Lunar (feldsp. breccia). [show all]
Search for other: Lunar meteorites

Comments:

Approved 31 May 2015

Writeup

help

Writeup from MB 104:

Northwest Africa 10141 (NWA 10141)

(Northwest Africa)

Purchased: 2015 Jan

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Matt Morgan and Lee Morgan in Morocco in January 2015.

Physical characteristics: Single stone. A saw cut reveals a feldspathic breccia with dark-gray shock melt veins.

Petrography: (C. Agee, UNM) This meteorite is mixture of a fine-grained cataclastic domains, large fragmental plagioclase crystals, and shock melt veins; some of the veins have ~100 μm-size vesicles. Accessory troilite, ilmenite, and chromite were observed.

Geochemistry: (C. Agee and N. Muttik, UNM) olivine Fa_38.8±1.4, Fe/Mn=102±7, n=12; pigeonite Fs_34.9±3.6Wo_7.2±3.5, Fe/Mn=62±4, n=5; augite Fs_25.8±5.3Wo_32.1±0.9, Fe/Mn=55±5, n=5; plagioclase An_96.7±0.4Ab_3.1±0.4Or_0.2±0.0, n=6; Shock melt (20 μm defocused electron beam, proxy for bulk meteorite composition): SiO₂=44.1±0.4, TiO₂=0.18±0.04, Al₂O₃=31.4±1.0, Cr₂O₃=0.06±0.02, MgO=3.3±0.7, FeO=3.4±0.6, MnO=0.04±0.02, CaO=17.4±0.5, NiO=0.02±0.02, Na₂O=0.33±0.03, K₂O=0.05±0.01 (all wt%), Fe/Mn=76±17, Mg#=63±2, MgO+FeO=6.7±1.3 (wt%), n=10.

Classification: Lunar (feldspathic breccia)

Specimens: 8.1 g including a probe mount on deposit at UNM, MtMorgan and Lee Morgan hold the main mass.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Morocco
Date:	P 2015 Jan
Mass (g):	39
Pieces:	1
Class:	Lunar (feldsp. breccia)
Shock stage:	high
Weathering grade:	moderate
Fayalite (mol%):	38.8±1.4
Ferrosilite (mol%):	34.9±3.6, 25.8±5.3
Wollastonite (mol%):	7.2±3.5, 32.1±0.9
Classifier:	C. Agee, UNM
Type spec mass (g):	8.1
Type spec location:	UNM
Main mass:	Matt Morgan and Lee Morgan
Comments:	Field name MM47; submitted by C. Agee, UNM

Institutions
and collections

UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
MtMorgan: Matt Morgan, Mile High Meteorites, P.O. Box 151293, Lakewood, CO 80215-9293, United States; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full

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Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)

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Revision
history:

This lists important revisions made to data for this record.

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