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Northwest Africa 8723 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8723 This is an OFFICIAL meteorite name. Abbreviation: NWA 8723 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: 217 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 8890 approved meteorites (plus 5 unapproved names) classified as L5. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 19 Jan 2015 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 104:
Northwest Africa 8723 (NWA 8723) (Northwest Africa) Found: 2014 Classification: Ordinary chondrite (L5) History: Recovered in April 2014 near the borders of Mauritania, Western Sahara and Algeria. Purchased in Mauritania in June 2014. Physical characteristics: Single stone. Weathered fusion crust. Saw cut reveals fine-grained metal/sulfide set in a fine-grained brown matrix, also metal veinlet ~1 mm thick. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows scattered equilibrated chondrules, plagioclase with grain size up to 50 μm, kamacite, taenite, troilite, chromite, and augite. Geochemistry: C. Agee and N. Muttik, UNM) Olivine Fa25.0±1.1, Fe/Mn=50±5, n=15; low-Ca pyroxene Fs21.1±0.7Wo2.7±0.7, Fe/Mn=31±2, n=12; plagioclase Ab83.4±0.3, n=4. Classification: Ordinary chondrite (L5, W1, S3). Specimens: 23.2 g including a probe mount on deposit at UNM, DPitt holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB104 Table 0 Line 0: |
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Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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