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Northwest Africa 12517
Basic information Name: Northwest Africa 12517
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12517
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 740 g
Classification
  history:
Meteoritical Bulletin:  MB 108  (2020)  LL4-6
Recommended:  LL4-6    [explanation]

This is 1 of 71 approved meteorites classified as LL4-6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 18 Feb 2019
Writeuphelp
Writeup from MB 108:

Northwest Africa 12517 (NWA 12517)

(Northwest Africa)

Purchased: 2017 Mar

Classification: Ordinary chondrite (LL4-6)

History: Purchased by Ben Hoefnagels in March 2017 from a dealer in Ouarzazate, Morocco.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed, equilibrated chondrules plus some angular type-6 clasts (largely recrystallized with rare remnant chondrules) are set in a finer matrix containing altered metal.

Geochemistry: Olivine (Fa29.0-30.4, N = 3), orthopyroxene (Fs21.8-24.4Wo1.2-1.9, N = 3), low-Ca pyroxene (Fs7.8Wo5.7), augite (Fs9.3-10.3Wo43.7-42.7, N = 2).

Classification: Ordinary chondrite (LL4-6).

Specimens: 21.7 g including one polished thin section at UWB; remainder with Mr. B. Hoefnagels.

Data from:
  MB108
  Table 0
  Line 0:
Place of purchase:Ouarzazate
Date:P 2017 Mar
Mass (g):740
Pieces:1
Class:LL4-6
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):29.0-30.4
Ferrosilite (mol%):21.8-24.4
Wollastonite (mol%):1.2-1.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.7
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:Work name BH069; 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. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7483 approved meteorites from (Northwest Africa) (plus 1994 unapproved names)

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