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Northwest Africa 2366 | |||||||||||||||||||||
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Basic information | Name: Northwest Africa 2366 This is an OFFICIAL meteorite name. Abbreviation: NWA 2366 Observed fall: No Year found: 2004 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||
Classification history: |
This is 1 of 393 approved meteorites classified as Eucrite-pmict. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||
Writeup![]() |
Writeup from MB online:
Northwest Africa 2366 Northwest Africa Found 2003 Achondrite (eucrite) Four stones with a total weight of 1239 grams were purchased in Erfoud, Morocco in 2004 May. Description and classification (T. Bunch and J, Wittke, NAU): polymict breccia that contains a variety of textures including subophitic, phyric, cumulate (fine to coarse-grained varieties), variolitic, and shock melt. Phyric basalt: orthopyroxene phenocrysts, Fs56.4Wo3.0, FeO/MnO = 34.5; groundmass augite, Fs35.6Wo34.2; plagioclase, An 81.6. Coarse-grained cumulate: orthopyroxene, Fs43.9Wo 1.9, FeO/MnO = 37.3; exsolved pigeonite, Fs46.3Wo 3.4; plagioclase, An94.9. Variolitic basalt: Fs59.0Wo2.9, FeO/MnO = 35.3; subcalcic augite, Fs43.9Wo19.3; plagioclase, An76.5. Only very small amounts of ilmenite and no chromite were found in any rock type. All clasts and matrix are strongly shocked, pyroxenes and plagioclase are mostly recrystallized); shock melt clasts are xenoliths, low weathering grade. Specimens: type specimen, 28 g, NAU; main mass, Birdsell. | ||||||||||||||||||||
Data from: MB89 Table 7 Line 207: |
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Institutions and collections |
NAU: Geology, Bldg 12
Knoles Dr
Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012) Birdsell: Arizona Skies Meteorites, P.O. Box 2412, Flagstaff, AZ 86003, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
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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) |