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Northwest Africa 2628 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 2628 This is an OFFICIAL meteorite name. Abbreviation: NWA 2628 Observed fall: No Year found: 2004 Country: (Northwest Africa) Mass: 248 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 82 approved meteorites classified as CK3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 2 Aug 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 2628 (NWA 2628) (Northwest Africa) Purchased: 2004 Classification: Carbonaceous chondrite (CK3) History: Purchased by Mike Farmer in 2004 from a dealer in Erfoud, Morocco. Petrography: (A. Irving and S. Kuehner, UWS; T. Bunch and J. Wittke, NAU; P. Carpenter, WUSL) Separated well-formed, granular unequilibrated chondrules (apparent diameter 980±280 µm, N = 20) containing more magnesian cores are set in a fresh matrix containing Cr-magnetite. Geochemistry: Olivine (Fa20.3±13.3, range Fa0.3-33.2, N = 11), orthopyroxene (Fs13.8±11.4Wo1.0±0.1, range Fs0.9-22.5Wo1.0-0.9, N = 3), subcalcic augite (Fs1.0Wo33.9), diopside (Fs1.0Wo49.8), augite (Fs13.9Wo41.5), magnetite (0.6-2.9 wt.% Cr2O3, N = 3), plagioclase (An21.7Or3.1). Classification: Carbonaceous chondrite (CK3). Specimens: 26.2 g including one polished thin section at PSF; remainder with Mr. M. Farmer. | ||||||||||||||||||||||||||||||
Data from: MB109 Table 0 Line 0: |
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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) PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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