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Northwest Africa 7911 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7911 This is an OFFICIAL meteorite name. Abbreviation: NWA 7911 Observed fall: No Year found: 2002 Country: (Northwest Africa) Mass: 97.6 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 2062 approved meteorites (plus 5 unapproved names) classified as L4. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||
Comments: | Approved 2 Apr 2014 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 7911 (NWA 7911) (Northwest Africa) Purchased: 2002 Classification: Ordinary chondrite (L4) History: This sample was part of a collection of unidentified NWA samples purchased by the AMNH. Physical characteristics: The meteorite has a small amount of fusion crust. Some fusion crust was removed by weathering and some surfaces appear to have desert varnish. Petrography: The meteorite has numerous sharply bound chondrules and re-crystallized matrix. Average chondrule size is ~500 μm (n=25). Geochemistry: Olivine Fa25.7±1.5, n=22; pyroxene Fs19.6±2.6Wo1.4, n=19. Classification: Meteorite is an ordinary chondrite, L4. Weathering grade is W1, shock stage is S2. | ||||||||||||||||||||||||||||
Data from: MB103 Table 0 Line 0: |
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Institutions and collections |
AMNH: Department of Earth and Planetary Sciences, American Museum of Natural History, Central Park West, New York, NY 10024, United States (institutional address; updated 18 May 2013) KCCU: Kingsborough College of the City University of New York, Brooklyn, NY 11235, United States (institutional address; updated 28 Dec 2011) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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