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Northwest Africa 13205
Basic information Name: Northwest Africa 13205
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13205
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 2.56 kg
Recommended:  H4/5    [explanation]

This is 1 of 502 approved meteorites classified as H4/5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 16 Feb 2020
Writeup from MB 109:

Northwest Africa 13205 (NWA 13205)

(Northwest Africa)

Purchased: 2019 May

Classification: Ordinary chondrite (H4/5)

History: Purchased by Darryl Pitt in May 2019 from a dealer in Agadir, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Some well-formed, relatively small chondrules are set in a relatively coarse-grained, recrystallized matrix containing altered kamacite, taenite, troilite, Ti-poor chromite, merrillite and chlorapatite.

Geochemistry: Olivine (Fa17.5±0.4, range Fa17.0-17.9, N = 5), low-Ca pyroxene (Fs15.5±0.3Wo1.1±0.1, range Fs15.2-16.1Wo1.0-1.2, N = 5), augite (Fs5.7±0.5Wo45.3±1.2, range Fs5.3-6.2Wo46.0-43.9, N = 3), plagioclase (Ab81.2An14.7Or4.1).

Classification: Ordinary chondrite (H4/5).

Specimens: 27.4 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  Table 0
  Line 0:
Place of purchase:Agadir
Date:P 2019 May
Mass (g):2557
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):17.5±0.4
Ferrosilite (mol%):15.5±0.3
Wollastonite (mol%):1.1±0.1
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):27.4
Type spec location:UWB
Main mass:D. Pitt
Comments:Work name MVCH 498; submitted by A. Irving
   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)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
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)
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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     This is 1 of 7810 approved meteorites from (Northwest Africa) (plus 1971 unapproved names)

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