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Northwest Africa 10471
Basic information Name: Northwest Africa 10471
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10471
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 107.5 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Eucrite-mmict
Recommended:  Eucrite-mmict    [explanation]

This is 1 of 238 approved meteorites classified as Eucrite-mmict.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 24 Jan 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10471 (NWA 10471)

(Northwest Africa)

Purchased: 2015 Jul

Classification: HED achondrite (Eucrite, monomict)

History: Found at the border of Algeria and Mauritania in June 2015

Physical characteristics: One piece with fusion crust. A sawn surface shows weak brecciation with variable groundmass grain-size.

Petrography: (C. Agee, UNM) Pyroxene (~65%) and plagioclase (~30%) are the major minerals in this meteorite. Most domains consist of fragmental mineral grains. Accessory silica, ilmenite, and chromite were observed.

Geochemistry: (C. Agee and N. Muttik, UNM) Low-Ca pyroxene Fs59.8±2.0Wo4.7±1.0, Fe/Mn=33±0, n=5; high-Ca pyroxene Fs41.2±11.3Wo26.6±14.0, Fe/Mn=33±1, n=9; plagioclase An89.2±0.8, n=4.

Classification: Monomict eucrite

Specimens: 20.3 g including a probe mount on deposit at UNM, DPitt holds the main mass.

Data from:
  MB105
  Table 0
  Line 0:
Date:P 2015 Jul
Mass (g):107.5
Pieces:1
Class:Eucrite-mmict
Shock stage:moderate
Weathering grade:low
Ferrosilite (mol%):59.8±2.0, 41.2±11.3
Wollastonite (mol%):4.7±1.0, 26.6±14.0
Classifier:C. Agee, UNM
Type spec mass (g):20.3
Type spec location:UNM
Main mass:DPitt
Comments:Field name MAC 165; submitted by C. Agee, UNM
Institutions
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
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 7385 approved meteorites from (Northwest Africa) (plus 1955 unapproved names)

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