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| Northwest Africa 11488 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 11488 This is an OFFICIAL meteorite name. Abbreviation: NWA 11488 Observed fall: No Year found: 2017 Country: Morocco Mass:  22 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 449 approved meteorites classified as Diogenite. [show all] Search for other: Achondrites, Diogenites, and HED achondrites | ||||||||||||||||||||||||||||||
| Comments: | Approved 21 Nov 2017 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 106:
Northwest Africa 11488 (NWA 11488) Morocco Purchased: 2017 Classification: HED achondrite (Diogenite) History: A single stone weighing 22 g was found in Morocco prior to 2016. J. Donald Cline and John Sinclair acquired the sample from a meteorite dealer at the Tucson Gem and Mineral Show in February of 2017. Physical characteristics: Sample is weakly tabular in shape, dark brownish-green has a patchy brown fusion crust which covers ~ 10% of the specimen. Sample is weakly magnetic and the broken and uncrusted sides show crystalline texture. Petrography: Description and classification (A. Love, App): Sample is an unbrecciated, crystalline rock composed of cumulate-textured, coarse-grained (average grainsize: 2570 µm), interlocking, light green orthopyroxene crystals (many of which have a preferred orientation). Additional minerals are: chromite, troilite, Fe-metal and Si-polymorph. Geochemistry: (A. Love, App) Opx Fs26.4±0.4 Wo2.3±0.5 (FeO/MnO=25.1-31.9, N=18). Classification: HED (diogenite). Mineral textures and compositions suggest this is an unbrecciated orthopyroxenitic diogenite. Specimens: PARI holds the main mass. An endcut and several small fragments weighing 4.93 g and a polished thin section are on deposit at App. | ||||||||||||||||||||||||||||||
| Data from: MB106 Table 0 Line 0: |
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| Institutions and collections |
App: Department of Geology, 572 Rivers St., Appalachian State University, Boone, NC 28608, United States (institutional address; updated 7 Mar 2013) PARI: Pisgah Astronomical Research Institute 1 Pari Dr Rosman, NC 28772, United States (institutional address; updated 13 Sep 2016) |
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| Catalogs: |
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| References: | Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography:
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Statistics: This is 1 of 1556 approved meteorites from Morocco (plus 22 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||||