NORTHWEST AFRICA 15243
(NWA15243)

This meteorite is officially classified & approved as NWA 15243
Classified and studied by world renowned and profoundly respected Dr Anthony J. Irving and team at University of Washington              
NWA 15243 
LL3
 CHONDRITE METEORITE 
FOUND IN FEBRUARY 2022
IN MALI 
 27.8 GRAM 

    GUARANTEED AUTHENTICITY 

YOU ARE BUYING A 100%  GUARANTEED AUTHENTIC METEORITE
COMBINED WITH A SIGNED CERTIFICATE OF AUTHENTICITY 

First class express delivery and provenance provided. 

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This Items will not include any reference and will be posted as a "Gift" for Customs purposes

TRULY A BEAUTIFUL MUSEUM QUALITY SHOWPIECE
FRESH FUSION CRUST WITH  VELVETY TEXTURE AND TONS OF CONTRACTION CRACKS

OFFICIAL CLASSIFICATION DATA SOURCE:
THE METEORITICAL SOCIETY
INTERNATIONAL SOCIETY FOR METEORITICS AND PLANETARY SCIENCE
LUNAR AND PLANETARY INSTITUTE
METEORITICAL BULLETIN DATABASE
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Northwest Africa 15243
Basic informationName: Northwest Africa 15243
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 15243
Observed fall: No
Year found: 2022
Country: Mali
Mass:help 2.69 kg
Classification
  history:
Recommended:  LL3 

Comments:Approved 5 Sep 2022
Writeuphelp
Writeup from MB 111:

Northwest Africa 15243 (NWA 15243)

Mali

Purchased: 2022 Feb

Classification: Ordinary chondrite (LL3)

History: Purchased by Mbark Arjdal in February 2022 from a Malian dealer.

Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Well-formed unequilibrated chondrules (apparent diameter 1240 ± 550 µm, N = 25) containing devitrified glass are set in a fine grained matrix containing altered kamacite, augite, chromite and troilite.

Geochemistry: Olivine (Fa17.3±8.9, range Fa2.0-34.4, N = 16; Cr2O3 in ferroan olivine 0.03-0.22 wt.%, mean 0.11 wt.%, sd 0.07 wt.%, N = 23), low-Ca pyroxene (Fs20.4±10.8Wo1.7±0.9, range Fs8.3-31.0Wo1.0-3.4, N = 7), subcalcic augite (Fs7.1Wo32.3; Fs19.5Wo20.0; N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.30.

Classification: Ordinary chondrite (LL3).

Specimens: 39.7 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
  MB111
  Table 0
  Line 0:
Place of purchase:Mali
Date:P 2022 Feb
Mass (g):2685
Pieces:many
Class:LL3
Shock stage:S2
Weathering grade:W2
Fayalite (mol%):17.3±8.9
Ferrosilite (mol%):20.4±10.8
Wollastonite (mol%):1.7±0.9
Magnetic suscept.:3.30
Classifier:A. Irving, UWS, and J. Boesenberg, BrownU
Type spec mass (g):39.7
Type spec location:UWB
Main mass:M. Arjdal
Comments:Work name Arj ZM 803; 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)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)
BrownU: Brown University Providence, RI 02912, United States (institutional address; updated 7 Sep 2019)
Catalogs:
References:Published in Meteoritical Bulletin, no. 111, in preparation (2022)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Mali
Coordinates:Unknown.

Statistics:
     This is 1 of 71 approved meteorites from Mali (plus 1 unapproved name)
Also see:
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Revision
  history:
  This lists important revisions made to data for this record.

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