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| Northwest Africa 13879 | |||||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 13879 This is an OFFICIAL meteorite name. Abbreviation: NWA 13879 Observed fall: No Year found: 2021 Country: Morocco Mass:  1930 g | ||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 30 approved meteorites classified as CVred3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||||
| Comments: | Approved 17 Jul 2021 | ||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 110:
Northwest Africa 13879 (NWA 13879) Morocco Purchased: 2021 Classification: Carbonaceous chondrite (CVred3) History: (C. Muñecas, Expometeoritos) A batch consisting of 13 pieces of various sizes was found by a nomad in a place in northwest Africa of unknown coordinates. All meteorites were purchased by Carlos Muñecas in Errachidia. Meteorites have different sizes ranging from a few grams to the main mass of 448 g. Physical characteristics: Samples have dark gray-brown exteriors and are ellipsoidal in shape. The cut face shows the interior has a chondritic texture composed of abundant dark and light-colored, ellipsoidal chondrules and CAIs (that define a preferred orientation) set within a dark colored matrix with sulfides. Petrography: Description and classification (A. Love, App) Sample shows chondritic texture with a prominent alignment of flattened chondrules (aspect ratio 1.3±0.2, pre-deformed avg diam. 653 µm, n=30) and CAIs set in 29 vol% opaque matrix. Isotropic glass is rare. Additional minerals are: chromite, fine-grained FeNi metal often associated with troilite, magnetite, and rare phosphates. Geochemistry: Olivine (Fa11.9±14.5 (Fa0.4-40.5), Fe/Mn=42.6±32.2, n=14); low-Ca pyroxene (Fs1.4±1.0 Wo2.0±0.3 (Fs0.7-3.6Wo0.6-2.3), n=8); Sulfides contain 0.16±0.14 wt% Ni, n=12. Classification: Carbonaceous chondrite (CVred3). Based on textures, mineral compositions, magnetic susceptibility and lack of Ni in sulfides, sample is a reduced CV3. Specimens: Carlos Muñecas (Expometeoritos) holds the 448 g main mass. A polished thin section and a 35.09 g endcut are on deposit at App. | ||||||||||||||||||||||||||||||||
| Data from: MB110 Table 0 Line 0: |
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| Institutions and collections |
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) |
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| References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:
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Statistics: This is 1 of 2003 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||||