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Northwest Africa 7922 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7922 This is an OFFICIAL meteorite name. Abbreviation: NWA 7922 Observed fall: No Year found: 2012 Country: Morocco Mass: 105.3 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 6825 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 Jun 2013 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 102:
Northwest Africa 7922 (NWA 7922) Morocco Purchased: 2012 Classification: Ordinary chondrite (H6) History: Purchased by Brahim Tahiri from a Moroccan hunter and sent to his partner Sean Tutorow for classification, 2012. Physical characteristics: Single stone, dark brown exterior, some weathered fusion crust, saw cut reveals many small chondrules and abundant metal grains set in an orange-brown groundmass. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous distinct POP chondrules, ~25% of metal is oxidized, some weathering veins. Geochemistry: (C. Agee and L. Burkemper, UNM) Olivine Fa18.5±0.3, Fe/Mn=38±2, n=10; low-Ca pyroxene Fs16.4±0.3Wo0.9±0.4, Fe/Mn=23±2, n=10. Classification: Ordinary chondrite (H6), weathering grade W2. Specimens: 19 g including a probe mount on deposit at UNM, Sean Tutorow holds the main mass. | ||||||||||||||||||||||||||||
Data from: MB102 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. 102, MAPS 50, 1662, September 2015
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Geography: |
Statistics: This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||||||
Also see: |
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Revision history: |
This lists important revisions made to data for this record.
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