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| Northwest Africa 7370 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 7370 This is an OFFICIAL meteorite name. Abbreviation: NWA 7370 Observed fall: No Year found: 2009 Country: Mali Mass:  2.29 kg | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 18 approved meteorites classified as Diogenite-olivine. [show all] Search for other: Achondrites, Diogenites, and HED achondrites | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 12 Sep 2012 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 101:
Northwest Africa 7370 (NWA 7370) ~22°50’N, ~6°11’W Gao, Mali Found: 2009 May Classification: HED achondrite (Diogenite, olivine) History: Four meteorites were discovered by an anonymous finder east of Agaraktem, Mali, in May 2009. Physical characteristics: Four almost complete individuals totaling 2290 g. Petrography: (R. Bartoschewitz, Bart) Polycrystalline olivine clusters (~50 vol%) of idiomorphic to hypidiomorphic cystals (<1 mm, average about 0.1 mm) distributed in schlieren-like bands within a matrix of xenolithic to hypidiomorphic pyroxene grains (about 1 mm), with rare intergranular feldspar. Chromite and metal occurs dominantly within pyroxene and olivine grains. Geochemistry: (R. Bartoschewitz, Bart; P. Appel, B. Mader, Kiel) Pyroxene Fs23.8-25.4Wo2.0-4.4, olivine Fa29.3-30.3, feldspar An76-83Ab1-5. Chromite Al2O3 = 14.4-15.4, TiO2 = 0.9-1.1, MgO = 4.1-4.8; Kamacite Ni = 0.3-1.1, Co = 0.7-0.9 (all in wt%). Classification: Olivine diogenite, S1, very fresh Specimens: Type specimen 20 g Kiel; 10 g Bart | ||||||||||||||||||||||||||||||||||||||
| Data from: MB101 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) SBuhl: Meteorite Recon (Mr. S Buhl), Muehlendamm 86, 22087 Hamburg, Germany (private address; updated 14 May 2010) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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Geography:
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Statistics: This is 1 of 23 approved meteorites from Gao, Mali (plus 1 unapproved name) This is 1 of 93 approved meteorites from Mali (plus 2 unapproved names) | ||||||||||||||||||||||||||||||||||||||
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