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Northwest Africa 14203 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14203 This is an OFFICIAL meteorite name. Abbreviation: NWA 14203 Observed fall: No Year found: 2018 Country: Algeria Mass: ![]() | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 307 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite). [show all] Search for other: Martian meteorites | ||||||||||||||||||||||||||
Comments: | Approved 17 Oct 2021 | ||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 110:
Northwest Africa 14203 (NWA 14203) Algeria Find: 2018 Classification: Martian meteorite (Shergottite) History: Purchased by Geologist Juan Avilés Poblador in 2021 from Said Yousfi in Morocco. Physical characteristics: Single stone with visible fusion crust. A few shock veins are visibly observed and appear to cut across the sample. Petrography: (D. Sheikh, Cascadia) Sample exhibits a primarily subophitic texture composed of compositionally zoned prismatic and equant pyroxene (Av. 550±100 µm) and elongate maskelynite (800±100 µm). Accessory phases include chlorapatite, ilmenite, titanomagnetite, and pyrrhotite. Geochemistry: Pigeonite (Fs47.9±16.2 Wo15.3±2.9, range Fs29.5-76.5Wo11.8-21.7, Fe/Mn=33±4, n=10), Augite (Fs31.3±8.3Wo29.0±4.0, range Fs24.0-46.5Wo24.0-34.6, Fe/Mn=31±4, n=10), Plagioclase (An52.1±5.0, range An42.6-58.0, n=14). Classification: Martian (shergottite, diabasic). Specimens: 8.8 grams and a thin section at Cascadia; main mass with Juan Avilés Poblador. | ||||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
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Institutions and collections |
Cascadia: Cascadia Meteorite Laboratory, Portland State University, Department of Geology, Room 17 Cramer Hall, 1721 SW Broadway, Portland, OR 97201, United States; Website (institutional address; updated 28 Oct 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 1315 approved meteorites from Algeria (plus 30 unapproved names) (plus 4 impact craters) |