Meteoritical Bulletin: Entry for Northwest Africa 11021

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Northwest Africa 11021

Basic information

Name: Northwest Africa 11021
This is an OFFICIAL meteorite name.
Abbreviation: NWA 11021
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass: 443 g

Classification
history:

Meteoritical Bulletin:	MB 105	(2016)	LL7
Recommended:			LL7 [explanation]

This is 1 of 102 approved meteorites classified as LL7. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 17 Dec 2016

Writeup

Writeup from MB 105:

Northwest Africa 11021 (NWA 11021)

(Northwest Africa)

Purchased: 2016 Jun

Classification: Ordinary chondrite (LL7)

History: Purchased by Fabien Kuntz in June 2016 from a Morocan dealer at the Sainte Marie-aux-Mines Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Very fresh specimen with poikiloblastic texture and no remnant chondrules. Minerals are orthopyroxene, olivine, clinopyroxene, oligoclase, troilite, chromite, stained kamacite and taenite.

Geochemistry: Olivine (Fa_30.1-30.4, N = 3), orthopyroxene (Fs_23.8-24.0Wo_4.1-4.0, N = 3), clinopyroxene (Fs_12.5-13.3Wo_39.5-37.8, N = 2), plagioclase (An_29.0Or_1.2).

Classification: Ordinary chondrite (LL7).

Specimens: 22.21 g including one polished thin section at PSF; remainder with Kuntz.

Data from:
  MB105
  Table 0
  Line 0:

Place of purchase:	Ste. Marie-aux-Mines
Date:	P 2016 Jun
Mass (g):	443.4
Pieces:	1
Class:	LL7
Shock stage:	S2
Weathering grade:	W0/1
Fayalite (mol%):	30.1-30.4
Ferrosilite (mol%):	23.8-24.0
Wollastonite (mol%):	4.1-4.0
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	22.21
Type spec location:	PSF
Main mass:	F. Kuntz
Comments:	K306; submitted by A. Irving

Institutions
and collections

PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
Kuntz: Fabien Kuntz, France; Website (private address)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/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)
Denis gourgues
Don Cuarzo
Mike Markowitz
Qi Lv
Ryan Upchurch

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names)

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