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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:
Recommended:  CV3    [explanation]

This is 1 of 593 approved meteorites (plus 1 unapproved name) 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 Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography: 
Coordinates:Unknown.

Statistics:
     This is 1 of 8746 approved meteorites from (Northwest Africa) (plus 1879 unapproved names)

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