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Northwest Africa 2386 | |||||||||||||||||||
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Basic information | Name: Northwest Africa 2386 This is an OFFICIAL meteorite name. Abbreviation: NWA 2386 Observed fall: No Year found: 2004 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||
Classification history: |
This is 1 of 121 approved meteorites classified as CK4. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites | ||||||||||||||||||
Writeup![]() |
Writeup from MB 89:
Northwest Africa 2386 Northwest Africa Purchased 2004 September Carbonaceous chondrite (CK4) A 440 g single stone with weathered crust was purchased in Erfoud, Morocco. Description and classification (J. Wittke and T. Bunch, NAU): contains ~42 vol. % small chondrules with ~13 vol. % CAI components dominated by melilite-spinel aggregates, rimmed by diopside or subcalcic augite. Chondrules have well-defined rims and mostly crystallized mesostasis. Matrix is partially recrystallized with minor Fe-, Mg-rich feldspathic glasses. Olivine is fine-grained and poorly crystallized. Matrix olivine, Fa29.5-34.8 (FeO/MnO = 31-37); low-Ca pyroxene, Fs25.3-29.0Wo0.9-5.3 (FeO/MnO = 25.3-29.0); plagioclase, An41.0-51.2Or2.1-2.9; magnetite, Cr2O3 = 5.3 wt. %, Al2O3 = 1.86 wt. %, TiO2 = 1.97 wt. % and NiO = 0.31 wt. %. Moderately weathered and lightly shocked (S2). Specimens: type specimen, 22 g, NAU; main mass, Reed. | ||||||||||||||||||
Data from: MB89 Table 7 Line 227: |
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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) Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, 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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Geography: |
Statistics: This is 1 of 9111 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) |