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Northwest Africa 8297 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 8297 This is an OFFICIAL meteorite name. Abbreviation: NWA 8297 Observed fall: No Year found: 2013 Country: (Northwest Africa) Mass: 1650 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 6775 approved meteorites (plus 6 unapproved names) classified as H6. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||
Comments: | Approved 28 Feb 2014 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 8297 (NWA 8297) (Northwest Africa) Purchased: 2013 Classification: Ordinary chondrite (H6) History: Purchased by Brahim Tahiri from a Moroccan hunter and sent to his partner Sean Tutorow for classification, 2013. Physical characteristics: Five identical stones, weathered dark exterior, saw cut reveals abundant fine-grained metal set in a dark brown groundmass. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a numerous distinct, equilibrated chondrules, plagioclase up to 150 μm. Oxidized iron and veinlets throughout. Geochemistry: (C. Agee and H. Miley, UNM) EMPA. Olivine Fa19.4±0.3, Fe/Mn=39±2, n=25, low Ca-pyroxene Fs17.1±0.4Wo1.3±0.3, Fe/Mn=24±1, n=11; plagioclase Ab82.5±0.2An11.8±0.2Or5.7±0.2, n=2. Classification: Ordinary chondrite (H6), weathering grade (W3). Specimens: 36.23 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass. | ||||||||||||||||||||||||||||
Data from: MB103 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) |
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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 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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