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Northwest Africa 10974
Basic information Name: Northwest Africa 10974
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10974
Observed fall: No
Year found: 2005
Country: (Northwest Africa)
Mass:help 16.7 kg
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  L6
Recommended:  L6    [explanation]

This is 1 of 11000 approved meteorites (plus 6 unapproved names) classified as L6.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 26 Nov 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10974 (NWA 10974)

(Northwest Africa)

Purchased: 2005

Classification: Ordinary chondrite (L6)

History: Purchased by an anonymous collector from a dealer at the Munich Show in 2005 and subsequently acquired by the Hollis Collection.

Petrography: (A. Irving and S. Kuehner, UWS) Mostly recrystallized with rare remnant chondrules. Silicates are stained brown by weathering products of primary metal. Accessory merrillite and chlorapatite are present.

Geochemistry: Olivine (Fa24.7-25.0, N = 3), orthopyroxene (Fs20.9-21.4Wo1.7-1.3, N = 3), clinopyroxene (Fs9.2-9.8Wo43.6-43.0, N = 2).

Classification: Ordinary chondrite (L6).

Specimens: 59 g including one polished thin section at PSF; remainder in the Hollis Collection.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Munich
Date:P 2005
Mass (g):16698
Pieces:1
Class:L6
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):24.7-25.0
Ferrosilite (mol%):20.9-21.4
Wollastonite (mol%):1.7-1.3
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):59
Type spec location:PSF
Main mass:Hollis Collection
Comments:CHC16013; 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)
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:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7035 approved meteorites from (Northwest Africa) (plus 2000 unapproved names)

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