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Northwest Africa 15131
Basic information Name: Northwest Africa 15131
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15131
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 1200 g
Recommended:  R3    [explanation]

This is 1 of 72 approved meteorites classified as R3.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 19 Aug 2022
Writeup from MB 111:

Northwest Africa 15131 (NWA 15131)

(Northwest Africa)

Purchased: 2021

Classification: Rumuruti chondrite (R3)

History: Purchased by Jinji Li from a Moroccan dealer at the 2021 Hunan Mineral and Gem Show in Chenzhou City, China.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed unequilibrated chondrules (apparent diameter 730 ± 420 µm, N = 25) containing devitrified glass are set in a fine grained, partly recrystallized matrix (~30 vol.%, brown in thin section) containing stained pentlandite and troilite, but no metal or magnetite.

Geochemistry: Olivine (Fa24.1±13.6, range Fa0.7-51.1, N = 16), low-Ca pyroxene (Fs15.5±6.9Wo1.5±1.2, range Fs9.2-29.3Wo0.2-4.1, N = 7)

Classification: R3 chondrite.

Specimens: 36.2 g including one polished thin section at UWB; remainder with Mr. Jinji Li.

Data from:
  Table 0
  Line 0:
Place of purchase:Chenzhou City, China
Date:P 2021
Mass (g):1200
Shock stage:S2
Weathering grade:low
Fayalite (mol%):24.1±13.6
Ferrosilite (mol%):15.5±6.9
Wollastonite (mol%):1.5±0.2
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):36.2
Type spec location:UWB
Main mass:J. Li
Comments:Work name WZY-86; 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)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 26 Oct 2023)
References: Published in Meteoritical Bulletin, no. 111, in preparation (2022)
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     This is 1 of 9429 approved meteorites from (Northwest Africa) (plus 1876 unapproved names)

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