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Northwest Africa 15291
Basic information Name: Northwest Africa 15291
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15291
Observed fall: No
Year found: 2022
Country: (Northwest Africa)
Mass:help 2.2 kg
Classification
  history:
Meteoritical Bulletin:  MB 111  (2023)  CV3
Recommended:  CV3    [explanation]

This is 1 of 470 approved meteorites (plus 2 unapproved names) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 1 Oct 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15291 (NWA 15291)

(Northwest Africa)

Purchased: 2022

Classification: Carbonaceous chondrite (CV3)

History: The meteorite was purchased from a meteorite dealer in Western Sahara.

Physical characteristics: Several dark brownish fragments without fusion crust.

Petrography: Carbonaceous chondrite composed of large chondrules (mean diameter about 1 mm; up to 3 mm sized), CAIs (up to 8 mm sized), and olivine amoeboids all set into a fine-grained brownish matrix. Several chondrules show brownish-reddish staining due to terrestrial alteration. Opaque phases include magnetite, sulfides, and their respective alteration products. Contains secondary calcite and barite.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Western Sahara
Date:P 2022
Mass (g):2200
Pieces:several
Class:CV3
Shock stage:S1
Weathering grade:moderate
Fayalite (mol%):9.8±11.4 (0.2-32.6, n=15)
Ferrosilite (mol%):0.7±0.1 (0.5-0.8, n=10)
Wollastonite (mol%):1.0±0.1 (0.9-1.1, n=10)
Classifier:A. Greshake, MNB
Type spec mass (g):20.3
Type spec location:MNB
Main mass:Mateusz Szyszko
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
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)
Robert Smart   
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names)
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Revision
  history:
  This lists important revisions made to data for this record.

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