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| Northwest Africa 13266 | |||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 13266 This is an OFFICIAL meteorite name. Abbreviation: NWA 13266 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass:  750 g | ||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 13 approved meteorites classified as Enst achon. [show all] Search for other: Achondrites, Enstatite achondrites, and Enstatite-rich meteorites | ||||||||||||||||||||||||||||
| Comments: | Approved 9 May 2020 | ||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 109:
Northwest Africa 13266 (NWA 13266) (Northwest Africa) Purchased: 2018 Classification: Enstatite achondrite History: The meteorite was purchased from a local meteorite dealer in Niger. Physical characteristics: Dark brownish rock without fusion crust. Petrography: The meteorite is an enstatite achondrite predominantly composed of 50-1000 µm sized enstatite and less abundant sodic feldspar grains. Some regions appear to be recrystallized exhibiting triple junctions. Albitic and Si-rich glass is present throughout the meteorite. Opaque phases include nodules composed of niningerite and Cr-rich troilte, Si-rich kamacite, and rare Zn-bearing daubréelite. Metal grains are often spherical. No relict chondrules have been observed. Geochemistry: enstatite: Fs0.3±0.2Wo0.3±1.3 (Fs0.1-0.6Wo0.2-0.3, n=12); feldspar: An19.2±1.9Ab79.1±1.9Or1.7±0.2 (An81.5-92.3Ab-75.9-83.2Or1.4-2.0, n=18); kamacite: Ni=7.04±0.18, Si=2.99±0.01, Co=0.24±0.01, P=0.58±0.39 (wt%), n=3 Classification: Enstatite achondrite. | ||||||||||||||||||||||||||||
| Data from: MB109 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., Bullock E., Chennaoui Aoudjehane H., Debaille V., D’Orazio M., Komatsu M., Miao B. and Schrader D. L. (2021) The Meteoritical Bulletin, No. 109. Meteoritics & Planetary Science 56, 1626–1630.
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| Photos: |
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| Geography: |
Statistics: This is 1 of 9914 approved meteorites from (Northwest Africa) (plus 1841 unapproved names) | ||||||||||||||||||||||||||||