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| Northwest Africa 2676 | |||||||||||||||||||||
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| Basic information | Name: Northwest Africa 2676 This is an OFFICIAL meteorite name. Abbreviation: NWA 2676 Observed fall: No Year found: 2004 Country: Morocco Mass:  510 g | ||||||||||||||||||||
| Classification history: |
This is 1 of 240 approved meteorites classified as Mesosiderite. [show all] Search for other: Mesosiderites, Metal-rich meteorites | ||||||||||||||||||||
| Comments: | Approved 21 Sep 2010 | ||||||||||||||||||||
| Writeup |
Writeup from MB 99:
Northwest Africa 2676 (NWA 2676) Morocco Found: 2004 Classification: Mesosiderite Petrography: Low-Ca pyroxene is pigeonitic; Fs27Wo 5.7 (n=5) ranges: Fs25.3-28.6Wo1.1-9.5. Plagioclase is anorthitic, mean: An94.0Or 0.28 (n=5) ranges: An93.3-94.5, Or0.24-0.33. The rock also contains silica with an open structure (high content of minor elements). Approximate proportions: 70% pyroxene, 25% plagioclase, 5% silica. Metal: silicate ratio is about 50:50 by volume Geochemistry: Co (mg/g) 4.67, Ni (mg/g) 83.9, Ga (µg/g) 12.4, Ge (µg/g) <100, As (µg/g) 9.71, Ir (µg/g) 4.34, Au (µg/g) 1.036 Submitter: J. T. Wasson, UCLA. | ||||||||||||||||||||
| Data from: MB99 Table 0 Line 0: |
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| Institutions and collections |
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011) 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. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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Geography:
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Statistics: This is 1 of 1967 approved meteorites from Morocco (plus 37 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||