Meteoritical Bulletin: Entry for Northwest Africa 10441

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Northwest Africa 10441

Basic information

Name: Northwest Africa 10441
This is an OFFICIAL meteorite name.
Abbreviation: NWA 10441
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass: 239 g

Classification
history:

Meteoritical Bulletin:	MB 104	(2015)	Martian (shergottite)
Recommended:			Martian (shergottite) [explanation]

This is 1 of 330 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all]
Search for other: Martian meteorites

Comments:

Approved 26 Dec 2015

Writeup

help

Writeup from MB 104:

Northwest Africa 10441 (NWA 10441)

(Northwest Africa)

Purchased: April 2015

Classification: Martian meteorite (Shergottite)

History: Purchased by team eegooblago (Brahim Tahiri, Dustin Dickens and Sean Tutorow) while on expedition in Northwest Africa and Western Sahara in April and May 2015.

Physical characteristics: Six indentical appearing stones with no fusion crust. Saw-cut surfaces show an intergranular mix of light-green pyroxene and maskelynite. Dark colored melt veins and pockets are prominent, with most showing significant vesiculation.

Petrography: (C. Agee, UNM) This meteorite consists of ~50% pyroxene, ~30% maskelynite, and ~15% shock melt. Pyroxenes show igneous zoning, and some are partially melted from shock. Shock melt domains are up to 1 cm wide and many contain vesicles 1-3 mm in diameter. All plagioclase has been transformed to maskelynite. Fe-sulfide, Ti-magnetite, ilmenite, and silica observed.

Geochemistry: (C. Agee and N. Muttik, UNM) Pigeonite Fs_49.5±9.2Wo_15.7±3.3, Fe/Mn=36±3, n=31; augite Fs_28.4±6.7Wo_33.3±2.0, Fe/Mn=32±3, n=33; maskelynite An_53.8±1.7Ab_44.2±2.0Or_2.1±0.7.

Classification: Martian (shergottite).

Specimens: 20.5 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass.

Data from:
  MB104
  Table 0
  Line 0:

Place of purchase:	Northwest Africa
Date:	P April 2015
Mass (g):	238.79
Pieces:	6
Class:	Martian (shergottite)
Shock stage:	high
Weathering grade:	moderate
Ferrosilite (mol%):	49.5±9.2, 28.4±6.7
Wollastonite (mol%):	15.7±3.3, 33.3±2.0
Classifier:	C. Agee, UNM
Type spec mass (g):	20.5
Type spec location:	UNM
Main mass:	Sean Tutorow
Comments:	Field name G613; 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)

Catalogs:

References:

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

Find references in NASA ADS:
Find references in Google Scholar:

Photos:

Credit	Photos
Photos uploaded by members of the Encyclopedia of Meteorites. (Caution, these are of unknown reliability)
Woreczko Jan & Wadi

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9921 approved meteorites from (Northwest Africa) (plus 1838 unapproved names)

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