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Northwest Africa 12350
Basic information Name: Northwest Africa 12350
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12350
Observed fall: No
Year found: 2006
Country: Morocco
Mass:help 6.63 kg
Classification
  history:
Meteoritical Bulletin:  MB 107  (2018)  H4
Recommended:  H4    [explanation]

This is 1 of 6033 approved meteorites (plus 11 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 27 Nov 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12350 (NWA 12350)

Morocco

Purchased: 2006

Classification: Ordinary chondrite (H4)

History: Purchased in 2006 by Sean Tutorow in Quartzsite, Arizona.

Physical characteristics: Typing specimen has a fusion crust and displays minor weathering.

Petrography: (M. Spencer, UWO) Olivine has irregular fractures. One large barred olivine crystal (>1 mm) is present in the thin section. Plagioclase displays twinning and undulatory extinction (S2). Pyroxene displays pleochroism in plain polarized light, undulatory extinction. Metal Abundance: Fe-Ni metals (mostly taenite, some kamacite present), Fe-Ni oxides, Fe-sulfides are still present (W1). Most chondrules display sharp boundaries, with an average diameter of 0.27 mm (n=13).

Geochemistry: (EMPA, M. Beauchamp, UWO) Olivine: Fa19.1±0.5; Fe/Mn=36.8±1.5 (n=10), Pyroxene: Fs16.2±0.1Wo1.0±0.3; Fe/Mn=21.8±1.1 (n=10), Plagioclase: An10.7±3.3 (n=10).

Classification: Ordinary Chondrite (H4), Weathering W1, Shock S2

Specimens: 206 g including a thin section at UWO. Main mass with S. Tutorow.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Quartzite, Arizona, USA
Date:P 2006
Mass (g):6629.8
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W1
Fayalite (mol%):19.1±0.5 (N=10)
Ferrosilite (mol%):16.2±0.1 (N=10)
Wollastonite (mol%):1.0±0.3 (N=10)
Classifier:M. Spencer, UWO
Type spec mass (g):206
Type spec location:UWO
Main mass:S. Tutorow
Comments:G709; 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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