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Northwest Africa 12289 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12289 This is an OFFICIAL meteorite name. Abbreviation: NWA 12289 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 31 approved meteorites classified as L5-melt breccia. [show all] Search for other: L chondrites, L chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 11 Dec 2018 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 107:
Northwest Africa 12289 (NWA 12289) (Northwest Africa) Purchased: 2018 Classification: Ordinary chondrite (L5, melt breccia) History: The meteorite was purchased from a local meteorite dealer in Errachidia, Morocco. Physical characteristics: Brownish individual without fusion crust. Petrography: The meteorite is a melt breccia composed of abundant recrystallized shock melt regions with characteristic FeNi metal and sulfide globules and embedded relict mineral fragments and some preserved chondrules. In chondritic portions olivine and low-Ca pyroxene are compositionally equilibrated and the plagioclase grain size is about 30 μm. | ||||||||||||||||||||||||||||||
Data from: MB107 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. 107, MAPS 55, 460-462
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Geography: |
Statistics: This is 1 of 8904 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |