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Northwest Africa 12894 | |||||||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12894 This is an OFFICIAL meteorite name. Abbreviation: NWA 12894 Observed fall: No Year found: 2019 Country: Morocco Mass: ![]() | ||||||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 712 approved meteorites (plus 1 unapproved name) classified as L3. [show all] Search for other: L chondrites, L chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||||||
Comments: | Approved 21 Dec 2020 | ||||||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Northwest Africa 12894 (NWA 12894) Morocco Purchased: 2019 Classification: Ordinary chondrite (L3) History: (Ziyao Wang) Purchased by Haichuan Tang from a Moroccan dealer at the mineral show in Chenzhou in May. 2019 Physical characteristics: (Ziyao Wang) Dark yellow stone of 202 g without fusion crust, weathering is very serious Petrography: (R. Bartoschewitz, Bart) well defined, fractured chondrules (0.3-2 mm, av. 0.7 mm) set in a brown-stained matrix; cracks and vugs are filled with Fe-hydroxides. Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa23.6±2.3 (n=16); pyroxene Fs13.5±8.6Wo0.7±0.5 (n=9). Taenite; troilite (Ni=0.2-0.8 wt%). Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 4.43 Classification: Ordinary chondrite (L3, S2, W4) Specimens: 32.1 g at Kiel on deposit, Haichuan Tang and Ziyao Wang hold the main mass and 75 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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Photos: |
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Geography:![]() |
Statistics: This is 1 of 1548 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater) |