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Northwest Africa 10804
Basic information Name: Northwest Africa 10804
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 10804
Observed fall: No
Year found: 2016
Country: (Northwest Africa)
Mass:help 180 g
Classification
  history:
Meteoritical Bulletin:  MB 105  (2016)  CV3
Recommended:  CV3    [explanation]

This is 1 of 536 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 24 Sep 2016
Writeuphelp
Writeup from MB 105:

Northwest Africa 10804 (NWA 10804)

(Northwest Africa)

Purchased: 2016 May

Classification: Carbonaceous chondrite (CV3)

History: Purchased in Temara, Morocco by Adam Aaronson in May 2016.

Petrography: (A. Irving and S. Kuehner, UWS) Relatively large (apparent diameter 0.2-3 mm, mean 1.7 mm), round to irregularly shaped, granular chondrules (some with multiple rims), irregularly shaped fine grained CAI and some isolated olivine grains occur in a fine grained orange-brown matrix (~20 vol.%). One CAI consists of hibonite+gehlenite+spinel+tiny grains of osmium metal.

Geochemistry: Olivine (Fa0.3-47.4; Fa 87.0, N = 4), orthopyroxene (Fs0.6Wo0.9), pigeonite (Fs0.7Wo14.1), subcalcic augite (Fs4.3Wo28.6), augite (Fs0.6Wo43.5).

Classification: Carbonaceous chondrite (CV3).

Specimens: 21.3 g including one polished thin section at UWB; remainder with Aaronson.

Data from:
  MB105
  Table 0
  Line 0:
Place of purchase:Temara
Date:P 2016 May
Mass (g):180
Pieces:1
Class:CV3
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):0.3-47.4; 87.0
Ferrosilite (mol%):0.6; 0.7; 4.3; 0.6
Wollastonite (mol%):0.9; 14.1; 28.6; 43.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):21.3
Type spec location:UWB
Main mass:A. Aaronson
Comments:M1938; 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)
Aaronson: Sahara Overland Ltd., Harhora, Temara, 12000, Morocco (private address; updated 3 Jan 2010)
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 7320 approved meteorites from (Northwest Africa) (plus 1973 unapproved names)

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