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Northwest Africa 12352
Basic information Name: Northwest Africa 12352
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12352
Observed fall: No
Year found: 2017
Country: Morocco
Mass:help 205 g
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  H5
Recommended:  H5    [explanation]

This is 1 of 10308 approved meteorites (plus 45 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 27 Nov 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12352 (NWA 12352)

Morocco

Purchased: 2017 Feb

Classification: Ordinary chondrite (H5)

Physical characteristics: This sample has a dar-brown fusion crust. The inside shows a dark-gray matrix with a significant number of chondrules and metals.

Petrography: (B. Borba de Carvalho, UWO) The thin section exhibits numerous chondrules (up to 1.6 mm) in a dark matrix of medium-grained silicates, metals, minor oxides and sulfides. Most of the chondrules lack well-delineated edges. Major mineral phases are olivine and low-Ca pyroxene. Minor plagioclase and clinopyroxene were observed. No alteration and strong shock features were observed, except for irregular fractures and undulutory extinction in olivine and pyroxene. Fe-Ni metal phases have minor oxide rims.

Geochemistry: (EMPA, M. Beauchamp, UWO) Olivine (Fa17.7±0.2; Fe/Mn = 35.6±1.2; n=10), Pyroxene (Fs15.5±0.2 Wo1.4±0.1; Fe/Mn = 20.7±1; n=10), Plagioclase (An13.1±0.5; n=10).

Classification: Ordinary chondrite (H5, S2, W1).

Specimens: 30.2 g including a thin section at UWO. Main mass with S. Tutorow.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Erfoud, Morocco
Date:P 2017 Feb
Mass (g):204.5
Pieces:1
Class:H5
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):17.7±0.2 (N=10)
Ferrosilite (mol%):15.5±0.2 (N=10)
Wollastonite (mol%):1.4±0.1 (N=10)
Classifier:B. Borba de Carvalho, UWO
Type spec mass (g):30.2
Type spec location:UWO
Main mass:S. Tutorow
Comments:G711; submitted by A. Bouvier, UWO
Institutions
   and collections
UWO: University of Western Ontario, Department of Earth Sciences, BGS 1026, 1151 Richmond St. N, London, Ontario, Canada N6A 5B7, Canada (institutional address; updated 18 Jul 2015)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 1680 approved meteorites from Morocco (plus 25 unapproved names) (plus 1 impact crater)

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