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Northwest Africa 14271
Basic information Name: Northwest Africa 14271
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14271
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 179 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  R3-4
Recommended:  R3-4    [explanation]

This is 1 of 12 approved meteorites classified as R3-4.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 11 Nov 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14271 (NWA 14271)

(Northwest Africa)

Purchased: 2021 Apr

Classification: Rumuruti chondrite (R3-4)

History: Purchased by Philip Mani in April 2021 from a dealer in Zagora, Morocco.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Discrete well-formed unequilibrated and equilibrated chondrules (apparent diameter 570±230 µm, N = 23) plus Type 3 and Type 4 lithic clasts occur within a fine grained matrix (orange-brown in thin section). Accessory phases include chromite (with variable Ti contents), pyrrhotite (rarely Ni-bearing) and secondary iron hydroxides.

Geochemistry: Olivine (Fa35.6±9.4, range Fa18.8-41.4, N = 5), low-Ca pyroxene (Fs25.0±4.8Wo0.7±0.1, range Fs19.8-29.1Wo0.6-0.7, N = 3), augite (Fs12.8±1.3Wo44.8±0.8, range Fs11.7-14.2Wo45.3-43.9, N = 3).

Classification: R3-4 chondrite breccia.

Specimens: 20.8 g including one polished thin section at UWB; remainder with Mr. P. Mani.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Zagora
Date:P 2021 Apr
Mass (g):179
Pieces:1
Class:R3-4
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):35.6±9.4
Ferrosilite (mol%):25.0±4.8
Wollastonite (mol%):1.6±0.2
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.8
Type spec location:UWB
Main mass:P. Mani
Comments:Work names RC146.2 and PCM21-1; 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
Catalogs:
References: Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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