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Northwest Africa 7191
Basic information Name: Northwest Africa 7191
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 7191
Observed fall: No
Year found: 2012
Country: (Northwest Africa)
Mass:help 137 g
Classification
  history:
Meteoritical Bulletin:  MB 101  (2012)  L-melt rock
Recommended:  L-melt rock    [explanation]

This is 1 of 35 approved meteorites classified as L-melt rock.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 23 Aug 2012
Writeuphelp
Writeup from MB 101:

Northwest Africa 7191 (NWA 7191)

(Northwest Africa)

Purchased: 2012 Jan

Classification: Ordinary chondrite (L, melt rock)

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

Petrography: Extremely fine grained, melt-textured specimen composed of tiny prismatic silicate grains and rounded blobs of metal+troilite. No chondrule remnants were observed.

Geochemistry: Olivine (Fa23.6-24.7), orthopyroxene (Fs18.8Wo2.3; Fs12.7Wo1.4), subcalcic augite (Fs17.2-17.7Wo25.0-22.0).

Classification: Ordinary chondrite (L-melt rock).

Data from:
  MB101
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P 2012 Jan
Mass (g):137
Pieces:1
Class:L-melt rock
Shock stage:S6
Weathering grade:W0/1
Fayalite (mol%):23.6-24.7
Ferrosilite (mol%):18.8
Wollastonite (mol%):2.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.2
Type spec location:UWB
Main mass:J. Higgins
Comments:JH11-11; 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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 6900 approved meteorites from (Northwest Africa) (plus 2035 unapproved names)

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