Meteoritical Bulletin: Entry for Northwest Africa 11101

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Northwest Africa 11101

Basic information

Name: Northwest Africa 11101
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11101
Observed fall: No
Year found: 2016
Country: Morocco
Mass: 1630 g

Classification
history:

Meteoritical Bulletin:	MB 106	(2018)	L3
Recommended:			L3 [explanation]

This is 1 of 848 approved meteorites (plus 2 unapproved names) classified as L3. [show all]
Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3)

Comments:

Approved 26 Jan 2017

Writeup

Writeup from MB 106:

Northwest Africa 11101 (NWA 11101)

Morocco

Purchased: 2016 Dec

Classification: Ordinary chondrite (L3)

History: Purchased by Ke Zuokai in Dec. 2016 from a Moroccan dealer.

Physical characteristics: The meteorite is covered by a brown/black fusion crust. Round chondrules ranging from white to dark gray are visible.

Petrography: The thin section exhibits numerous well-defined chondrules (up to 1.1 mm) set in a fine-grained matrix. PO, PP, POP, BO, BP, and minor RP chondrules are identified. Accessory phases are metal, troilite and Fe-oxides. Metallic phase accounts for ~4 vol%.

Geochemistry: Silicates are unequilibrated. Olivine Fa_0.8-35.1(Fa_20.2±8.5, PMD=35.1%, n=33); low-Ca pyroxene Fs_2.5-22.7Wo_0-4.2(Fs_12.4±6.6Wo_1.0±1.1, Fs PMD=48.4%, n=32); minor augite Fs_3.8Wo_36.9.

Classification: L3. L classification based on metal abundance and moderate sized chondrules with varies textures.

Data from:
  MB106
  Table 0
  Line 0:

Place of purchase:	Beijing China
Date:	P 2016 Dec
Mass (g):	1630
Pieces:	1
Class:	L3
Shock stage:	S2
Weathering grade:	W2
Fayalite (mol%):	20.2±8.5 (n=33)
Ferrosilite (mol%):	12.4±6.6 (n=32); 3.8 (n=1)
Wollastonite (mol%):	1.0±1.1 (n=32); 36.9 (n=1)
Classifier:	Wu Y., PMO
Type spec mass (g):	20
Type spec location:	PMO
Main mass:	Ke Zuokai
Comments:	Submitted by Hsu W.

Institutions
and collections

PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 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.

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Geography:

Morocco

Coordinates:

Unknown.

Statistics:
This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

Also see:

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Revision
history:

This lists important revisions made to data for this record.

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