Meteoritical Bulletin: Entry for Northwest Africa 7192

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Northwest Africa 7192

Basic information

Name: Northwest Africa 7192
This is an OFFICIAL meteorite name.
Abbreviation: NWA 7192
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass: 1780 g

Classification
history:

Meteoritical Bulletin:	MB 100	(2012)	LL4
Recommended:			LL4 [explanation]

This is 1 of 389 approved meteorites classified as LL4. [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)

Comments:

Approved 11 Jun 2012

Writeup

Writeup from MB 100:

Northwest Africa 7192 (NWA 7192)

(Northwest Africa)

Purchased: 2012 Jan

Classification: Ordinary chondrite (LL4)

History: Purchased by John Higgins in 2012 January from a dealer in Rissani, Morocco.

Petrography: Breccia with clasts consisting of fairly large, relatively closely-packed, well-formed chondrules in a matrix containing a moderate amount of metal. Olivine, orthopyroxene, pigeonite, sodic plagioclase, chromite, troilite and altered kamacite.

Geochemistry: Olivine (Fa_26.9-27.2), orthopyroxene (Fs_21.3Wo_0.2; remnant cores Fs_12.2Wo_2.0), pigeonite (Fs_19.6-21.0Wo_12.0-13.3).

Classification: Ordinary chondrite (L4).

Data from:
  MB100
  Table 1
  Line 1664:

Place of purchase:	Rissani
Date:	P 2012 Jan
Mass (g):	1780
Pieces:	1
Class:	LL4
Shock stage:	S2
Weathering grade:	W1
Fayalite (mol%):	26.9-27.2
Ferrosilite (mol%):	21.3
Wollastonite (mol%):	0.2
Classifier:	A. Irving and S. Kuehner, UWS
Type spec mass (g):	60.8
Type spec location:	UWS
Main mass:	J. Higgins
Comments:	JH11-12; submitted by A. Irving

Institutions
and collections

UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)

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)
Aeroliths Collection Theodossiou
Piotr gural100
Robert Smart

Geography:

Coordinates:

Unknown.

Statistics:
This is 1 of 9305 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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