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Northwest Africa 2352 | |||||||||||||||||||||||
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Basic information | Name: Northwest Africa 2352 This is an OFFICIAL meteorite name. Abbreviation: NWA 2352 Observed fall: No Year found: 2004 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||
Classification history: |
This is 1 of 630 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||
Writeup![]() |
Writeup from MB online:
Northwest Africa 2352 Northwest Africa Found 2003 Achondrite (Ureilite) A complete, dark brown and partially crusted stone of 389 g was purchased in Erfoud, Morocco. Description and classification (T. Bunch and J. Wittke, NAU): high amounts of large, laminated graphite grains (up to 1.9 mm in length) occur interstitially to olivine and pigeonite; only small amounts of carbonaceous-metal-silicate masses are present. Very limited olivine rim reduction or smelting, R1 level with less that 0.02 mm of olivine margins affected. Olivine cores, Fa11.9, FeO/MnO = 21 and rims are Fa10.7, FeO/MnO = 19; pigeonite. Fs11.4Wo9.4, FeO/MnO = 13.7. Oxygen isotopes (D. Rumble, CIW): replicate analyses by laser fluorination gave δ17O = 2.86 and 2.89, δ18O = 7.16 and 7.37 and Δ17O = -0.913 and -1.002 per mil. Very lightly weathered in the interior with low-level shock. Specimens: type sample, 21.1 g, NAU: main mass, Regelman. | ||||||||||||||||||||||
Data from: MB89 Table 7 Line 193: |
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Plots: | O isotopes: | ||||||||||||||||||||||
Institutions and collections |
NAU: Geology, Bldg 12
Knoles Dr
Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012) CIW: Carnegie Insitution Washington, Geophysical Laboratory, 5251 Broad Branch Rd., NW, Washington DC 20015, United States (institutional 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 9116 approved meteorites from (Northwest Africa) (plus 1873 unapproved names) |