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Northwest Africa 15099
Basic information Name: Northwest Africa 15099
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15099
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 425 g
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 340 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 23 Jul 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15099 (NWA 15099)

(Northwest Africa)

Purchased: 2022 Mar

Classification: Lunar meteorite (feldspathic breccia)

History: Purchased by Wenxi Jin from a Moroccan dealer January 2022 and sold to Fujun Ren in March 2022.

Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Breccia composed of mineral clasts and some lithic clasts in a fine grained matrix. Major minerals are anorthite, olivine, low-Ca pyroxene, pigeonite and Al-Ti-augite (some associated with ilmenite in lithic clasts). Accessory phases include ilmenite, Ti-free chromite, Ti-chromite, troilite, altered kamacite, rare taenite and minor secondary barite. Ilmenite-bearing lithic clasts are a minor component of this dominantly feldspathic breccia.

Geochemistry: Olivine (Fa17.1-33.7, FeO/MnO = 89-104, N = 6), low-Ca pyroxene (Fs27.8-33.2Wo3.7-3.5, FeO/MnO = 53-55, N = 2), pigeonite (Fs20.5-34.4Wo8.0-6.8, FeO/MnO = 52-53, N = 2), Al-Ti-augite (Fs26.5Wo43.3, FeO/MnO = 48, Al2O3 6.5 wt.%, TiO2 6.6 wt.%), anorthite (An95.9-96.7Or0.1, N = 3).

Classification: Lunar (feldspathic breccia).

Specimens: 21.6 g including one polished mount at UWB; remainder with Mr. Fujun Ren.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:China
Date:P 2022 Mar
Mass (g):425
Pieces:many
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):17.1-33.7
Ferrosilite (mol%):27.8-33.2; 20.5-34.4
Wollastonite (mol%):3.7-3.5; 8.0-6.8
Classifier:A. Irving, UWS, and P. Carpenter, WUSL
Type spec mass (g):21.6
Type spec location:UWB
Main mass:Fujun Ren
Comments:Work name WZY-105; 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. 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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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Fujun Ren   
Ziyao Wang      
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names)
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Revision
  history:
  This lists important revisions made to data for this record.

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