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Northwest Africa 12007
Basic information Name: Northwest Africa 12007
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12007
Observed fall: No
Year found: 2018
Country: (Northwest Africa)
Mass:help 155.6 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  LL6
Recommended:  LL6    [explanation]

This is 1 of 2816 approved meteorites (plus 1 unapproved name) classified as LL6.   [show all]
Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 27 Oct 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12007 (NWA 12007)

(Northwest Africa)

Purchased: 2018 Feb

Classification: Ordinary chondrite (LL6)

History: Purchased by Blaine Reed in February 2018 from a Moroccan dealer at the Tucson Gem and Mineral Show.

Petrography: (A. Irving and S. Kuehner, UWS) Mostly recrystallized with regions of hollyleaf-shaped, stained metal grains and accessory chlorapatite. Some rare chondrule remnants were observed.

Geochemistry: Olivine (Fa33.0-33.1, N = 3), orthopyroxene (Fs26.4-26.6Wo1.9-1.8, N = 3), clinopyroxene (Fs10.2-11.1Wo44.9-44.2, N = 2).

Classification: Ordinary chondrite (LL6).

Specimens: 21.2 g including one polished thin section at UWB; remainder with Mr. B. Reed.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2018 Feb
Mass (g):155.6
Pieces:1
Class:LL6
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):33.0-33.1
Ferrosilite (mol%):26.4-26.6
Wollastonite (mol%):1.9-1.8
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.2
Type spec location:UWB
Main mass:B. Reed
Comments:Work name BR 106; 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)
Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7912 approved meteorites from (Northwest Africa) (plus 1974 unapproved names)

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