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Northwest Africa 11843 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11843 This is an OFFICIAL meteorite name. Abbreviation: NWA 11843 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass: 76 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 100 approved meteorites classified as LL7. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 26 Apr 2019 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 108:
Northwest Africa 11843 (NWA 11843) (Northwest Africa) Purchased: 2018 Classification: Ordinary chondrite (LL7) History: The meteorite was purchased from a local meteorite dealer in Morocco. Physical characteristics: Dark-brownish individual partly covered with fusion crust. Petrography: The meteorite shows a thoroughly recrystallized texture of predominantly olivine and low-Ca pyroxene with more minor albitic feldspar. Rarely some relict chondrule fragments are encountered. Opaque phases are troilite, Ni-bearing pyrrhotite, and FeNi metal. The meteorite contains some small and locally restricted regions that appear melted and recrystallized. Geochemistry: albitic feldspar: An11.7±2.7Ab81.5±5.5Or6.6±7.4, n=8 | ||||||||||||||||||||||||||||||
Data from: MB108 Table 0 Line 0: |
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Institutions and collections |
MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011) |
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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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Photos: |
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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