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Northwest Africa 14048
Basic information Name: Northwest Africa 14048
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14048
Observed fall: No
Year found: 2020
Country: (Northwest Africa)
Mass:help 354 g
Recommended:  R4    [explanation]

This is 1 of 65 approved meteorites classified as R4.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7)
Comments: Approved 6 Jul 2021
Writeup from MB 110:

Northwest Africa 14048 (NWA 14048)

(Northwest Africa)

Purchased: 2020 Dec

Classification: Rumuruti chondrite (R4)

History: Purchased by Tom Thiegs in December 2020 from a Moroccan dealer.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Very fresh breccia composed of equilibrated Type 4 lithic clasts and related debris in a finer grained matrix. Lithic clasts have separated, well-formed chondrules within matrices containing accessory Ni-bearing pyrrhotite (with rare FePtAs inclusions), pentlandite and low-Ti chromite. Sulfides exhibit very minor secondary staining.

Geochemistry: Olivine (Fa39.1±0.2, range Fa38.9-39.3, N = 5), low-Ca pyroxene (Fs30.7±0.4Wo2.1±1.4, range Fs30.2-31.0Wo1.3-3.8, N = 3), augite (Fs11.8±0.5Wo44.9±0.7, range Fs11.2-12.2Wo44.2-45.6, N = 3), plagioclase in chondrule (An78.8Or1.4), plagioclase in matrix (Ab83.7An9.7Or6.6).

Classification: R4 chondrite breccia.

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

Data from:
  Table 0
  Line 0:
Place of purchase:Morocco
Date:P 2020 Dec
Mass (g):354
Shock stage:S2
Weathering grade:low
Fayalite (mol%):39.1±0.2
Ferrosilite (mol%):30.7±0.4
Wollastonite (mol%):2.1±1.4
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):20.8
Type spec location:UWB
Main mass:T. Thiegs
Comments:Work name TGT003; 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)
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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     This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names)

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