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Northwest Africa 10962
Basic information Name: Northwest Africa 10962
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10962
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 860 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-unbr
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 136 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 17 Dec 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10962 (NWA 10962)

(Northwest Africa)

Find: 2015

Classification: HED achondrite (Eucrite, unbrecciated)

History: Purchased by Fayssal Mezgouri in 2015 from a nomad in northwest Africa and sold to Dustin Dickens in 2016.

Physical characteristics: Two stones of approximately equal mass with glassy, partially oxidized fusion crust on one side of each and sand-ablated patina on the remaining surfaces.

Petrography: (Z. Guo, UWO) Medium grained igneous rock. Modal abundances and corresponding grain sizes: plagioclase 60% (400-500 μm), pyroxene 40% (300-1000 μm) and metal ~1% (100-200 μm). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.81. Undulatory extinction is present in some plagioclase. Metal has a narrow oxide rim.

Geochemistry: Mineral composition and geochemistry: Pyroxenes: low-Ca Fs58.6±1.4Wo 3.6±1.8 (N=6), High-Ca: Fs 29.3±2.1Wo39.9±2.4 (N=9), Fe/Mn ratio of 27.3±0.8 (N=15). Plagioclase: An89.7±0.3 (N=10).

Classification: Eucrite, unbrecciated.

Specimens: 21.9 g at UWO including a thin section.

Data from:
  MB105
  Table 0
  Line 0:
Date:2015
Mass (g):860
Pieces:2
Class:Eucrite-unbr
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):58.6±1.4 (N=6) 29.3±2.1 (N=9)
Wollastonite (mol%):3.6±1.8 (N=6); 39.9±2.4 (N=9)
Magnetic suscept.:3.81
Classifier:Z. Guo, UWO
Type spec mass (g):21.9
Type spec location:UWO
Main mass:Dustin Dickens
Comments:W0001; submitted by Audrey Bouvier
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. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
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