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Northwest Africa 12302 | |||||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12302 This is an OFFICIAL meteorite name. Abbreviation: NWA 12302 Observed fall: No Year found: 2017 Country: Morocco Mass: 50 g | ||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 628 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 31 May 2020 | ||||||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 12302 (NWA 12302) Morocco Purchased: 2017 Classification: Carbonaceous chondrite (CV3) History: (Ziyao Wang) Purchased by Ziyao Wang from Adnane Sami during the China (Hunan) Mineral & Gem Show in Chenzhou City in May 2017. Physical characteristics: (Ziyao Wang) Dark gray-yellow flat stone of 50 g without fusion crust Petrography: (R. Bartoschewitz, Bart) well defined chondrules (0.3-1.8 mm, av. 1 mm) of various types (PO, POP, RP, BO, GO), chondrule fragments, and AOAs are set in dark brown opaque matrix (~15%). Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa18.4 (Fa0.2-36.5; Fe/Mn=54; Fe/Mg=0.25; n=15); pyroxene Fs9.4±6.7Wo0.6±0.5 (Fe/Mn=20; Fe/Mg=0.1; n=11); Ca pyroxene En32Fs5Wo63 (n=1); An74Or1 (n=1). Kamacite Ni=6.8, Co=1.7 (n=1); taenite Ni=36.9, Co=0,5 (n=2) (all wt%). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 3.43 Classification: carbonaceous chondrite (CV3, S2) Specimens: 10.2 g on deposit at Kiel, Ziyao Wang holds the main mass, and 5.5 g with Bart. | ||||||||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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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) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 2049 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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