| MetSoc Home Publications Contacts |
|
||
|
||
| 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:  51 g | ||||||||||||||||||||||||||||||||||||
| Classification history: |
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 |
Writeup from MB 112:
Northwest Africa 12529 (NWA 12529) Morocco 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: MB112 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||||||||
| Plots: | O isotopes: | ||||||||||||||||||||||||||||||||||||
| Institutions 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) |
||||||||||||||||||||||||||||||||||||
| Catalogs: |
| ||||||||||||||||||||||||||||||||||||
| References: | Published in Meteoritical Bulletin, no. 112, in preparation (2023)
| ||||||||||||||||||||||||||||||||||||
| Photos: |
| ||||||||||||||||||||||||||||||||||||
Geography:
|
Statistics: This is 1 of 2012 approved meteorites from Morocco (plus 35 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||||