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Northwest Africa 8011 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8011 This is an OFFICIAL meteorite name. Abbreviation: NWA 8011 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 11 approved meteorites classified as LL-melt rock. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Melted chondrites, Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 29 Jul 2014 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 103:
Northwest Africa 8011 (NWA 8011) (Northwest Africa) Purchased: 2013 Jan Classification: Ordinary chondrite (LL, melt rock) History: Purchased by S. Haddany in Erfoud, Morocco, in January 2013. Physical characteristics: Fresh fine grained gray stone (160 g). Petrography: (A. Irving and S. Kuehner, UWS) Unusual specimen with a relatively fine grained, apparently igneous texture, yet there are rare partial remnant chondrules present in places. Mean grain size is ~0.5 mm, but there are many randomly-oriented, prismatic olivine and pyroxene grains (some up to 1.5 mm long). Accessory minerals are troilite (exhibiting very slight staining), chromite and taenite, but kamacite is evidently absent. Geochemistry: Olivine (Fa29.2-29.4), orthopyroxene (Fs24.5-24.6Wo3.2-4.1), subcalcic augite (Fs15.9-18.4Wo31.9-27.0). Classification: Ordinary chondrite (LL, melt rock). This specimen has an anomalous texture, and may represent a coarse grained melt rock related to LL chondrites. Specimens: 20.1 g including one polished thin section at UWB. The remainder is held by Mr. S. Haddany. | ||||||||||||||||||||||||||||||
Data from: MB103 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) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: |
Statistics: This is 1 of 8890 approved meteorites from (Northwest Africa) (plus 1871 unapproved names) |