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Northwest Africa 14878
Basic information Name: Northwest Africa 14878
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 14878
Observed fall: No
Year found: 2021
Country: (Northwest Africa)
Mass:help 300 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  R3
Recommended:  R3    [explanation]

This is 1 of 77 approved meteorites classified as R3.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 25 May 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 14878 (NWA 14878)

(Northwest Africa)

Purchased: 2021 Sep

Classification: Rumuruti chondrite (R3)

History: Purchased by Jason Whitcomb in September 2021 from an Algerian dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Both lithic Type 3 chondrite clasts and discrete glass-bearing, unequilibrated chondrules occur in a fine-grained matrix (~25 vol.%, orange in thin section). Chondrules have apparent diameters of 510±270 µm (N = 26). Accessory sodic plagioclase and chromite are present but metal is absent; Fe oxides may represent altered troilite or other sulfides.

Geochemistry: Olivine (Fa34.8±7.7, range Fa21.5-39.8, N = 7), low-Ca pyroxene (Fs23.8±9.3Wo2.2±0.4, range Fs13.3-30.5Wo1.7-2.4, N = 3), augite (Fs11.4±0.3Wo45.2±0.5, range Fs11.1-11.7Wo44.7-45.7, N = 4), plagioclase (Ab83.9-86.8An13.4-10.2Or2.7-3.0, N = 2).

Classification: R3 chondrite breccia.

Specimens: 20.0 g including one polished thin section at PSF; remainder with Mr. J. Whitcomb.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Algeria
Date:P 2021 Sep
Mass (g):300
Pieces:2
Class:R3
Shock stage:S2
Weathering grade:moderate
Fayalite (mol%):34.8±7.7
Ferrosilite (mol%):23.8±9.3
Wollastonite (mol%):2.2±0.4
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):20.0
Type spec location:PSF
Main mass:J. Whitcomb
Comments:Work name JW-111; submitted by A. Irving
Institutions
   and collections		 PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011)
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 4 Jan 2024)
Catalogs:
References: Published in Gattacceca J., McCubbin F. M., Grossman J. N., Schrader D. L., Chabot N. L., D’Orazio M., Goodrich C., Greshake A., Gross J., Joy K. H., Komatsu M. and Miao B. (2023) The Meteoritical Bulletin, No. 111. Meteoritics & Planetary Science 58, 901–904. ?
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Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
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