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Northwest Africa 13258 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13258 This is an OFFICIAL meteorite name. Abbreviation: NWA 13258 Observed fall: No Year found: 2019 Country: Morocco Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 612 approved meteorites (plus 1 unapproved name) classified as CV3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 5 Apr 2020 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 109:
Northwest Africa 13258 (NWA 13258) Morocco Find: 2019 Classification: Carbonaceous chondrite (CV3) History: Purchased in November 2019 by Juan Aviles Poblador from Said Yousfii in Morocco. Physical characteristics: Multiple stones with dark-brown fusion crust. Petrography: (D. Sheikh, FSU) Sample contains abundant chondrules (Av. 1mm, up to 4mm), CAIs (Av. 2 mm, up to 4 mm), and isolated mineral fragments set in a fine-grained opaque matrix. Accesory phases include magnetite (some containing Cr), sodalite, and pentlandite. Geochemistry: Olivine (Fa19.1±22.5, range Fa1.3-75.7, n=37), Low-Ca Pyroxene (Fs1.8±0.7Wo2.4±1.5, range Fs0.7-3.1Wo0.8-4.5, n=20). Classification: Carbonaceous chondrite (CV3-Ox). Strong Mg-Fe zonation in chondrule olivine (the majority of chondrule olivines being Mg rich), the lack of FeNi metal, and the presence of magnetite, pentlandite, some isolated fayalite grains, and sodalite throughout the matrix point to the oxidized subgroup. Specimens: 20.07 grams at UCLA; main mass with Juan Aviles Poblador. | ||||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Photos: |
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Geography:![]() |
Statistics: This is 1 of 1973 approved meteorites from Morocco (plus 37 unapproved names) (plus 1 impact crater) |