Martian Meteorite SHERGOTTITE 43.6 gram end cut I NWA 12269
| Northwest Africa 12269 | |||||||||||||||||||||||||||||
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| Basic information |
Name: Northwest Africa 12269 This is an OFFICIAL meteorite name. Abbreviation: NWA 12269 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass:  1679 g |
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| Classification history: |
This is 1 of 195 approved meteorites (plus 1 unapproved name) classified as Martian (shergottite). [show all] Search for other: Martian meteorites |
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| Comments: | Approved 11 Dec 2018 | ||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 107:
Northwest Africa 12269 (NWA 12269) (Northwest Africa) Purchased: 2018 Jul Classification: Martian meteorite (Shergottite) History: Purchased in Ouarzazate, Morocco by Mohamed Aid in July 2018. Petrography: (A. Irving and S. Kuehner, UWS; P. Carpenter, WUSL) Relatively fine grained with intersertal texture. Composed predominantly of zoned clinopyroxene and maskelynite (some exhibiting a curved, narrow lath-like habit) with accessory fine grained intergrowths of hedenbergite+fayalite+silica, Fe-Ti oxides, merrillite and pyrrhotite. Geochemistry: Subcalcic augite (Fs24.8-41.8Wo31.4-24.3, FeO/MnO = 30-33, N = 3), ferropigeonite (Fs66.9-73.0Wo16.6-16.5, FeO/MnO = 41-43, N = 2), maskelynite (An51.9-53.1Or1.3-1.2, N = 2). Classification: Martian (shergottite, fine-intersertal) Specimens: 20.5 g including one polished thin section at UWB; remainder with Mr. Aaronson. |
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| Data from: MB107 Table 0 Line 0: |
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ID: NWA1226920_43.6_04
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