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Northwest Africa 13201
Basic information Name: Northwest Africa 13201
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 13201
Observed fall: No
Year found: 2019
Country: (Northwest Africa)
Mass:help 18.02 kg
Classification
  history:
Recommended:  L4/5    [explanation]

This is 1 of 77 approved meteorites (plus 1 unapproved name) classified as L4/5.   [show all]
Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 16 Feb 2020
Writeuphelp
Writeup from MB 109:

Northwest Africa 13201 (NWA 13201)

(Northwest Africa)

Purchased: 2019 Oct

Classification: Ordinary chondrite (L4/5)

History: Purchased by Darryl Pitt in October 2019 from a dealer in Erfoud, Morocco.

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

Geochemistry: Olivine (Fa24.7±0.2, range Fa24.4-25.0, N = 5), low-Ca pyroxene (Fs20.7±0.2Wo1.6±0.3, range Fs20.5-20.9Wo1.1-2.0, N = 5), augite (Fs7.8±0.9Wo44.8±1.0, range Fs6.8-8.4Wo46.0-44.2, N = 3), plagioclase (Ab83.2An11.5Or5.2).

Classification: Ordinary chondrite (L4/5).

Specimens: 35.5 g including one polished thin section at UWB; remainder with DPitt.

Data from:
  MB109
  Table 0
  Line 0:
Place of purchase:Erfoud
Date:P 2019 Oct
Mass (g):18020
Pieces:1
Class:L4/5
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):24.7±0.2
Ferrosilite (mol%):20.7±0.2
Wollastonite (mol%):1.6±0.3
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):35.5
Type spec location:UWB
Main mass:D. Pitt
Comments:Work name MVCH 496; 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)
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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 109, in preparation (2020)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 7328 approved meteorites from (Northwest Africa) (plus 1973 unapproved names)

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