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Northwest Africa 12487 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12487 This is an OFFICIAL meteorite name. Abbreviation: NWA 12487 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 174 approved meteorites classified as H~5. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||
Comments: | Approved 11 Feb 2019 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 108:
Northwest Africa 12487 (NWA 12487) (Northwest Africa) Purchased: 2018 Classification: Ordinary chondrite (H~5) History: Purchased at Hamburg Mineral Show Dec. 2018. Physical characteristics: 121.4 g brown stone with about 50% black brown, rather fresh, fusion crust of ~0.3 mm. Surface without fusion crust is very strongly sculpted by erosion and metal spots are visible. Petrography: (R. Bartoschewitz, Bart) Gray brown, recrystallized, very porosus matrix with chondrules (0.2-1.5 mm, av. 0.5 mm), metal and sulfide specks. Vugs (av. 1 mm) bear olivine, pyroxene and troilite crystallites up to 0.3 mm. Geochemistry: Magnetic susceptibility (R. Bartoschewitz, Bart) log χ (× 10-9 m3/kg) = 5.42 Classification: Ordinary chondrite (H~5, W1) Specimens: 20.5 g on deposit at Kiel, Bart holds the main mass. | ||||||||||||||||||||||||||||
Data from: MB108 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. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography: |
Statistics: This is 1 of 7579 approved meteorites from (Northwest Africa) (plus 1969 unapproved names) |