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Northwest Africa 12529
Basic information Name: Northwest Africa 12529
     This is an OFFICIAL meteorite name.
Abbreviation: NWA 12529
Observed fall: No
Year found: 2018
Country: Morocco
Mass:help 51 g
Recommended:  CVred3    [explanation]

This is 1 of 30 approved meteorites classified as CVred3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 25 Jun 2023
Writeup from MB 112:

Northwest Africa 12529 (NWA 12529)


Purchased: 2018

Classification: Carbonaceous chondrite (CVred3)

History: (Ziyao Wang) Purchased by Ziyao Wang from Simo Mezgouri during the China Mineral & Gem Show in Beijing City in Nov. 2018

Physical characteristics: (Ziyao Wang) one brown globular stone of 51 g without fusion crust, chondrules are recognizable on the surface

Petrography: (R. Bartoschewitz, Bart) well defined heavily fractured chondrules (~40 vol%, 0.2-1.2 mm, av. 0.7 mm) and few AOAs up to 0.5 mm set in a opaque brown fine-grained matrix. Metal occur in the matrix, chondrules or as individual grains up to 0.5 mm.

Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa15.6 (1.0-32.9; n=38); pyroxene Fs4.4 (0.8-18.3) Wo1.5(0.7-4.8; n=20); Ca-pyroxene En60-64Fs2-6Wo30-38 (n=2); feldspar An87±2.2Or<1 (n=7). Kamacite Ni=4.5-6.8, Co=0.5-1.0 (n=9); FeS Ni=<0.3 (all wt%). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.75. Oxygen isotope compositions obtained by laser fluorination from bulk powder (R. Havel, G. Budde, D. Ibarra; BrownU): d17O = -3.848‰, d18O = 0.724‰, D’17O(0.528) = -4.235‰ (untreated); d17O = -4.738‰, d18O = -0.578‰, D’17O(0.528) = -4.447‰ (EATG-leached)

Classification: Carbonaceous chondrite (CV3red, S2)

Specimens: 10.2 g on deposit at Kiel, Ziyao Wang holds the main mass, and 9 g plus polished thin section with Bart

Data from:
  Table 0
  Line 0:
Origin or pseudonym:desert
Place of purchase:Beijing
Date:P 2018
Mass (g):51
Shock stage:S2
Weathering grade:high
Fayalite (mol%):15.6±9.5 (n=38)
Ferrosilite (mol%):4.4±4.5 (n=20)
Wollastonite (mol%):1.5±1.2
Magnetic suscept.:4.75
Classifier:R. Bartoschewitz
Type spec mass (g):10.2
Type spec location:Kiel
Main mass:Wang Ziyao
Comments:working name WZ108; submitted by R. Bartoschewitz
Plots: O isotopes:  
   and collections
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Beijing: Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China (institutional address; updated 16 Oct 2011)
BrownU: Joseph Boesenberg Brown University Dept of Earth, Environmental and Planetary Sciences (DEEPS) 324 Brook Street Providence, RI 02912 , United States (institutional address; updated 26 Oct 2023)
References: Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Ziyao Wang      


     This is 1 of 2012 approved meteorites from Morocco (plus 35 unapproved names) (plus 1 impact crater)

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