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Northwest Africa 12001
Basic information Name: Northwest Africa 12001
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12001
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 5.23 kg
Meteoritical Bulletin:  MB 107  (2018)  H5
Recommended:  H5    [explanation]

This is 1 of 11607 approved meteorites (plus 23 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 15 Sep 2018
Writeup from MB 107:

Northwest Africa 12001 (NWA 12001)


Purchased: 2018 Feb

Classification: Ordinary chondrite (H5)

History: Purchased from Mohammed Hmani during the Tucson Gem and Mineral show February 2018.

Physical characteristics: Stones have a brownish exterior exposing many small chondrules and some specimens are partially covered with a brownish black crust. Some specimens also display prominent metal veining in positive relief.

Petrography: (C. Herd and L. Tunney, UAb) Optical and microprobe examination of a polished thin section shows well-delineated chondrules of a variety of textural types. No metal veins were observed in the specimen studied. Weathering grade according to Zurfluh et al. (2016).

Geochemistry: (C. Herd and L. Tunney, UAb) Data obtained by EMP examination of carbon-coated thin section: Olivine Fa18.3±0.3 (n=42); Low-Ca Pyroxene Fs16.0±0.2Wo1.2±0.2 (n=39).

Classification: Ordinary chondrite, H5

Specimens: Type specimen of 71.8 g, including one thin section, is at UAb. 3 stones totaling 2108 g with M. Ouzillou, 911 g stone with GHupé, and 2 stones totaling 2211 g with D. Dickens.

Data from:
  Table 0
  Line 0:
Place of purchase:Tucson
Date:P 2018 Feb
Mass (g):5230
Shock stage:S2
Weathering grade:W1.0
Fayalite (mol%):18.3±0.3 (n=42)
Ferrosilite (mol%):16.0±0.2 (n=39)
Wollastonite (mol%):1.2±0.2 (n=39)
Classifier:C. Herd and L. Tunney, UAb
Type spec mass (g):71.8
Type spec location:UAb
Main mass:M. Ouzillou
Comments:Field number MMO-2018-3A; submitted by C. Herd
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address)
Hmani: A. Hmani Moroccan Imports, 13 rue Jules Hardouin Mansart, 92600 Asnières, France (private address)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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     This is 1 of 2085 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)

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