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Northwest Africa 14275
Basic information Name: Northwest Africa 14275
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14275
Observed fall: No
Year found: 2020
Country: Algeria
Mass:help 789 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  H4
Recommended:  H4    [explanation]

This is 1 of 6493 approved meteorites (plus 2 unapproved names) classified as H4.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 6 Oct 2021
Writeuphelp
Writeup from MB 110:

Northwest Africa 14275 (NWA 14275)

Algeria

Purchased: 2020 Apr

Classification: Ordinary chondrite (H4)

History: Purchased by Mbark Arjdal in April 2020 from an Algerian dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed, relatively small equilibrated chondrules are set in a fine grained matrix containing kamacite, taenite, troilite, low-Ti chromite and merrillite. Glass is the predominant component in chondrule matrices but minor plagioclase is also present.

Geochemistry: Olivine (Fa19.6±0.6, range Fa18.6-20.1, N = 5), low-Ca pyroxene (Fs16.7±1.0Wo0.9±0.6, range Fs15.8-18.4Wo0.4-2.0, N = 5), augite (Fs8.3±1.0Wo38.3±2.6, range Fs7.4-9.4Wo40.7-35.5, N = 3).

Classification: Ordinary chondrite (H4).

Specimens: 77.1 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB110
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2020 Apr
Mass (g):789
Pieces:1
Class:H4
Shock stage:S2
Weathering grade:W1/2
Fayalite (mol%):19.6±0.6
Ferrosilite (mol%):16.7±1.0
Wollastonite (mol%):0.9±0.6
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):77.1
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj ZM 755; 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
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Geography:

Algeria
Coordinates:Unknown.

Statistics:
     This is 1 of 1356 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters)
Also see:
  This lists the most popular meteorites among people who looked up this meteorite.
Revision
  history:
  This lists important revisions made to data for this record.

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