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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 67 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 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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     This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names)

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