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Northwest Africa 10754
Basic information Name: Northwest Africa 10754
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10754
Observed fall: No
Year found: 2015
Country: (Northwest Africa)
Mass:help 770 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  Angrite
Recommended:  Angrite    [explanation]

This is 1 of 35 approved meteorites classified as Angrite.   [show all]
Search for other: Achondrites, Angrites
Comments: Approved 13 Aug 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10754 (NWA 10754)

(Northwest Africa)

Purchased: 2015 Mar

Classification: Angrite

History: Purchased by Scott Perekslis in March 2015 from a Moroccan dealer in Paris.

Petrography: (A. Irving and S. Kuehner, UWS) Recrystallized breccia composed of olivine (some in polygonal-textured aggregates), aluminous clinopyroxene (pinkish in thin section), spinel (purplish-brown in thin section), altered kamacite, troilite and sparse large anorthite clasts. Secondary iron hydroxides occur along grain boundaries.

Geochemistry: Olivine (Fa39.9-42.6, CaO = 0.9-1.4 wt.%, N = 4), clinopyroxene (Fs10.2-10.9Wo51.6-52.9, Al2O3 = 4.5-7.7 wt.%, TiO2 = 0.9-1.5 wt.%, N = 3), plagioclase (An99.2-99.3Or0.1, N = 2).

Classification: Angrite (breccia, metal-bearing). Paired with NWA 2999 and other stones.

Specimens: 21.5 g including one polished thin section at UWB; remainder with Mr. S. Perekslis.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Paris
Date:P 2015 Mar
Mass (g):770
Pieces:1
Class:Angrite
Shock stage:low
Weathering grade:moderate
Fayalite (mol%):39.9-42.6
Ferrosilite (mol%):10.2-10.9
Wollastonite (mol%):51.6-52.9
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.5
Type spec location:UWB
Main mass:S. Perekslis
Comments:SP16-1; submitted by A. Irving
Institutions
   and collections		 UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
Find references in NASA ADS:
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names)

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