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Northwest Africa 11919 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11919 This is an OFFICIAL meteorite name. Abbreviation: NWA 11919 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass: 11 g | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 633 approved meteorites classified as CM2. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites | ||||||||||||||||||||||||||
Comments: | Approved 15 Sep 2018 | ||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11919 (NWA 11919) (Northwest Africa) Purchased: 2018 Classification: Carbonaceous chondrite (CM2) History: The meteorite was purchased from a local meteorite dealer in Morocco. Physical characteristics: Eleven dark fragments some of which partly covered with fusion crust. Petrography: The meteorite is a brecciated carbonaceous chondrite composed of chondrules (mean diameter about 300 μm), chondrule pseudomorphs, CAIs, and mineral fragments set into abundant Fe-rich matrix. Many of the components are heavily corroded and often surrounded by fine-grained dust rims. Compositionally zoned olivine is the only anhydrous silicate present; former pyroxenes are completely altered. The meteorite matrix consists of abundant carbonates, sulfides and phyllosilicates. Carbonates are particularly rich in Fe and Mg attesting to a high degree of alteration. Geochemistry: carbonates contain up to 16.5 wt% MgO and 15.6 wt% FeO | ||||||||||||||||||||||||||
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 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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