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| Northwest Africa 13044 | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 13044 This is an OFFICIAL meteorite name. Abbreviation: NWA 13044 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass:  326 g | ||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 682 approved meteorites (plus 2 unapproved names) classified as H3. [show all] Search for other: H chondrites, H chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||||||
| Comments: | Approved 23 Feb 2023 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 112:
Northwest Africa 13044 (NWA 13044) (Northwest Africa) Purchased: 2019 Classification: Ordinary chondrite (H3) History: (Ziyao Wang) Purchased by Ziyao Wang from Fayssal Mezgouri at the mineral show in Beijing in Nov. 2019 Physical characteristics: (Ziyao Wang) A gray-black stone of 326 g with fusion crust. Petrography: (R. Bartoschewitz, Bart) various types of well developed chondrules, dominantly 0.3-1.5 mm (but some up to 5 mm, av. 0.47 mm, n=200) with abundant dark rims of troilite and oxidized metal, chrondrule and mineral fragments set in a black matrix, together with troilite and mostly oxidized metal (unaltered metal about 5 vol%). Geochemistry: (R. Bartoschewitz, Bart, P. Appel and B. Mader, Kiel) Olivine Fa16.4 (0.4-21.3; Fe/Mn=5-355, av. 73; n=33); poor Ca-pyroxene Fs9.3 (2.3-15.5) Wo1.3 (0.2-1.9; n=4); augite En49Fs11Wo40 (n=1). Kamacite Ni=4.1, Co=1.1 (n=3); taenite Ni=41.1-48.7, Co=0.8-1.1 (n=2); tetrataenite Ni=53.4, Co=1.7 (n=1); wt%. O-isotopes (A. Pack, T. Di Rocco, and A. Gehler, UGött): δ17O(‰) = 3.044, δ18O(‰) = 4.109, D’17O(0.528) (ppm) = 0.875. Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 3.91-3.95 Classification: Ordinary chondrite (H3, S2, W3). For an H chondrite (confirmed by O-isotopes), it has unusually low metal content, magnetic susceptibility, and high Co in kamazite. Specimens: 21.6 g on deposit at IfP, Ziyao Wang holds the main mass, and 31 g with Bart. Polished thin sections with Bart + IfP | ||||||||||||||||||||||||||||||||||||
| Data from: MB112 Table 0 Line 0: |
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| Plots: | O isotopes: | ||||||||||||||||||||||||||||||||||||
| Institutions and collections |
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012) 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) Gehler: A. Gehler, D-37075 Göttingen, Germany , Germany (private address; updated 10 Jun 2015) UGött: Geowissenschaftliches Museum, Georg-August-Universität Göttingen, Goldschmidtstr. 3, 37077 Göttingen, Germany; Website (institutional address; updated 26 Nov 2020) |
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| References: | Published in Meteoritical Bulletin, no. 112, in preparation (2023)
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| Geography: |
Statistics: This is 1 of 9042 approved meteorites from (Northwest Africa) (plus 1870 unapproved names) | ||||||||||||||||||||||||||||||||||||