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| Northwest Africa 11849 | |||||||||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 11849 This is an OFFICIAL meteorite name. Abbreviation: NWA 11849 Observed fall: No Year found: 2018 Country: (Northwest Africa) Mass:  335 g | ||||||||||||||||||||||||||||||
| Classification history: |
This is the only approved meteorite classified as L6-an. Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
| Comments: | Approved 4 Jul 2018 | ||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 107:
Northwest Africa 11849 (NWA 11849) (Northwest Africa) Purchased: 2018 Jan Classification: L6-an History: Purchased by Greg Hupe in January 2018 from a Moroccan dealer at the Tucson Gem and Mineral Show. Petrography: (A. Irving and S. Kuehner, UWS) Vesicular, metal-poor specimen consisting predominantly of finely recrystallized mafic silicates together with accessory sodic plagioclase, chromite, troilite and stained kamacite. Very sparse remnant chondrules are present, as well as poikiloblastic regions (presumably former chondrules). Small, spherical vesicles are present throughout. Geochemistry: Olivine (Fa24.4-25.0, N = 3), orthopyroxene (Fs18.9-20.5Wo4.0-4.4, N = 3), clinopyroxene (Fs10.9-11.6Wo38.6-35.9, N = 2). Classification: Ordinary chondrite (L6, anomalous, metal-poor, vesicular). The presence of abundant vesicles and the paucity of metal are anomalous features in comparison with typical L6 chondrites. Although this specimen contains rare remnant chondrules, in most other respects it closely resembles NWA 11253, and may be related to or even paired with that heterogeneous meteorite. Specimens: 20.4 g including one polished thin section at UWB; remainder with GHupé. | ||||||||||||||||||||||||||||||
| Data from: MB107 Table 0 Line 0: |
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| Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) GHupé: Gregory M. Hupé, 9003 Placid Lakes Blvd., Lake Placid, FL 33852, United States; Website (private address) Hupe: (old address—now see GHupé or AHupé) G. and A. Hupe, 2616 Lake Youngs Court SE, Renton, WA 98058., United States (private address) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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| Photos: |
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| Geography: |
Statistics: This is 1 of 9013 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||