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Northwest Africa 13652 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 13652 This is an OFFICIAL meteorite name. Abbreviation: NWA 13652 Observed fall: No Year found: 2020 Country: (Northwest Africa) Mass: 390 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 85 approved meteorites (plus 1 unapproved name) classified as Winonaite. [show all] Search for other: Primitive achondrites, Winonaites | ||||||||||||||||||||||||||||||
Comments: | Approved 16 Jan 2021 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 13652 (NWA 13652) (Northwest Africa) Purchased: 2020 Oct Classification: Primitive achondrite (Winonaite) History: The meteorite was purchased from a dealer in Tindouf, Algeria. Physical characteristics: Dark brownish rock without fusion crust. Petrography: The meteorite exhibts a recrystallized texture with abundant 120 degree triple junctions present at mineral grain boundaries. Predominant mineral phases are equigranular, 100 to 300 µm sized Mg-rich olivine, low-Ca pyroxene, augite, and sodic feldspar grains. Opaque phases are kamacite, taenite, and troilite which ocurr finely dispersed in the section studied. No relict chondrules were observed. Geochemistry: olivine: Fa3.2±0.1 (Fa3.1-3.3 FeO/MnO=12±1, n=12); low-Ca pyroxene: Fs4.1±0.1Wo1.9±0.1 (Fs4.0-4.3Wo1.8-2.1, FeO/MnO=11±1, n=13); Ca-pyroxene: Fs1.4±0.1Wo45.8±1.3 (Fs1.2-1.7Wo44.6-48.1, FeO/MnO=9±2, n=12); feldspar: An22.0±0.4Ab75.7±0.4Or2.3±0.2, n=11 Classification: Winonaite; likely paired with NWA 13624 | ||||||||||||||||||||||||||||||
Data from: MB110 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 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: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
Crosslinks: |
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Revision history: |
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