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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: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 71 approved meteorites 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 Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography: |
Statistics: This is 1 of 8495 approved meteorites from (Northwest Africa) (plus 1899 unapproved names) |