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Northwest Africa 11700
Basic information Name: Northwest Africa 11700
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11700
Observed fall: No
Year found: 2017
Country: (Northwest Africa)
Mass:help 102.3 kg
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  H4
Recommended:  H4    [explanation]

This is 1 of 6340 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 7 Apr 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 11700 (NWA 11700)

(Northwest Africa)

Purchased: 2017 Nov

Classification: Ordinary chondrite (H4)

History: Purchased in Temara, Morocco by Adam Aaronson in November 2017.

Petrography: (A. Irving and S. Kuehner, UWS) Closely packed, well-formed, relatively small chondrules are set in a recrystallized matrix containing altered kamacite and merrillite.

Geochemistry: Olivine (Fa18.8-18.9, N = 3), orthopyroxene (Fs15.5-17.0Wo0.5-1.2, N = 3), clinopyroxene (Fs7.5-9.4Wo40.5-42.4, N = 2).

Classification: Ordinary chondrite (H4).

Specimens: 29.2 g including one polished thin section at UWB; main mass with Aaronson.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2017 Nov
Mass (g):102300
Pieces:many
Class:H4
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):18.8-18.9
Ferrosilite (mol%):15.5-17.0
Wollastonite (mol%):0.5-1.2
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):29.2
Type spec location:UWB
Main mass:A. Aaronson
Comments:Work name M2081; 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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
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 8402 approved meteorites from (Northwest Africa) (plus 1899 unapproved names)

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