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Northwest Africa 11005
Basic information Name: Northwest Africa 11005
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 11005
Observed fall: No
Year found: 2016
Country: Morocco
Mass:help 1500 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Mesosiderite
Recommended:  Mesosiderite    [explanation]

This is 1 of 273 approved meteorites classified as Mesosiderite.   [show all]
Search for other: Mesosiderites, Metal-rich meteorites
Comments: Approved 30 Dec 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 11005 (NWA 11005)

Morocco

Purchased: 2016

Classification: Mesosiderite

History: Purchased by Ke Zuokai in 2016 from a Moroccan dealer who wants to be anonymous.

Physical characteristics: An irregular stone with a partial fusion crust.

Petrography: Petrographic microscope examination of a thin section shows this meteorite consists of cataclastic lithic clasts and randomly dispersed Fe-Ni metal-troilite grains, with silicate to metal ratio of ~1.5. The lithic clasts are mainly composed of low-Ca pyroxene and anorthite with/without quartz and high-Ca pyroxene. Small amounts of chromite, phosphate, ilmenite and titanium oxides can also be observed.

Geochemistry: Plagioclase (An82.2-95.0, n=14; average: An89.3±3.9), Pigeonite (Fs32.4-46.9Wo18.3-23.4, FeO/MnO=22.6-24.0, n=2), orthopyroxene (Fs14.6-56.9Wo0.7-10.2, FeO/MnO=17.2-27.9, n=10)

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Huangshi,China
Date:P 2016
Mass (g):1500
Pieces:1
Class:Mesosiderite
Shock stage:low
Weathering grade:weak
Ferrosilite (mol%):34.5±14.0; 39.6±10.3
Wollastonite (mol%):4.4±3.0; 20.9±3.6
Classifier:Li Y., PMO
Type spec mass (g):65
Type spec location:PMO
Main mass:Ke zuokai,Zhang Bo, Tong Xianping
Comments:Submitted by Hsu W.
Institutions
   and collections		 PMO: Purple Mountain Observatory, Nanjing, China (institutional address; updated 16 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography:

Morocco
Coordinates:Unknown.

Statistics:
     This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater)
Also see:
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Revision
  history:
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