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Northwest Africa 13261 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13261 This is an OFFICIAL meteorite name. Abbreviation: NWA 13261 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 1185 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 217 approved meteorites classified as CK5. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 10 Oct 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13261 (NWA 13261) Northwest Africa Purchased: 2019 Classification: Carbonaceous chondrite (CK5) History: Purchased from a Moroccan meteorite dealer and hotelier in Agadir. Physical characteristics: The single dense mass has a finely reticulated ash-hued outer surface sheathed in a desert varnish. Chondrules and CAIs protrude from the surface. The cut face reveals a greige matrix with numerous chondrules along with CAIs more than a centimeter in diameter and somewhat larger dark inclusions. Petrography: (C. Agee, UNM) Microprobe examination shows texturally equilibrated, recrystallized chondrules and matrix, fine-grained Cr-magnetite is present throughout and abundant. No metal was observed. Geochemistry: (C. Agee, UNM) Olivine Fa32.3±1.0, Fe/Mn=123±17, NiO=0.39±0.04(wt%), n=12; high-Ca pyroxene Fs8.2±1.1Wo49.5±0.8, Fe/Mn=77±2, n=2. Classification: Carbonaceous chondrite (CK5) Specimens: 21.9 g on deposit at UNM, DPitt holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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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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