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Northwest Africa 12247
Basic information Name: Northwest Africa 12247
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12247
Observed fall: No
Year found: 2018
Country: Algeria
Mass:help 59.3 g
Classification
  history:
Recommended:  CV3    [explanation]

This is 1 of 466 approved meteorites classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 24 Nov 2018
Writeuphelp
Writeup from MB 107:

Northwest Africa 12247 (NWA 12247)

Algeria

Purchased: 2018 May

Classification: Carbonaceous chondrite (CV3)

History: Found in Algeria and purchased by Darryl Pitt in May 2018 from a Mauritanian dealer.

Petrography: (A. Irving and S. Kuehner, UWS) Well-formed chondrules (apparent diameter 900±350 µm, N = 21; some rimmed) and fine grained CAI are set in a fine grained matrix (~30 vol.%, orange-brown in thin section) containing minor calcite and barite.

Geochemistry: Olivine (Fa0.3-37.3, N = 3), orthopyroxene (Fs0.7-1.2Wo0.8-0.7, N = 3), augite (Fs5.0Wo39.8; Fs47.9Wo50.1; N = 2).

Classification: Carbonaceous chondrite (CV3).

Specimens: 15.8 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  MB107
  Table 0
  Line 0:
Place of purchase:Mauritania
Date:P 2018 May
Mass (g):59.3
Pieces:1
Class:CV3
Shock stage:S2
Weathering grade:low
Fayalite (mol%):0.3-37.3
Ferrosilite (mol%):0.7-1.2
Wollastonite (mol%):0.8-0.7
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):15.8
Type spec location:UWB
Main mass:DPitt
Comments:Work name MVCH 369; 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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
Catalogs:
References: Published in Meteoritical Bulletin, no. 107, in preparation (2018)
Find references in NASA ADS:
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 941 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)

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