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| Northwest Africa 7977 | |||||||||||||||||||||||||
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| Basic information | Name: Northwest Africa 7977 This is an OFFICIAL meteorite name. Abbreviation: NWA 7977 Observed fall: No Year found: 2013 Country: Morocco Mass:  3.4 kg | ||||||||||||||||||||||||
| Classification history: |
This is 1 of 522 approved meteorites classified as Diogenite. [show all] Search for other: Achondrites, Diogenites, and HED achondrites | ||||||||||||||||||||||||
| Comments: | Approved 12 Sep 2013 | ||||||||||||||||||||||||
| Writeup |
Writeup from MB 102:
Northwest Africa 7977 (NWA 7977) Morocco Purchased: 2013 Classification: HED achondrite (Diogenite) History: Purchased by Brahim Tahiri from a Moroccan hunter and sent to Sean Tutorow for classification, 2012. Physical characteristics: Numerous matching fragments of the original mass, friable with coarse grained gemmy green pyroxenes, some light tan desert coating present. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows approximately 95% pyroxene, minor iron metal, chromite, troilite, and silica. Geochemistry: (C. Agee and N. Muttik, UNM) Low Ca-pyroxene Fs28.4±0.3Wo3.5±0.7, Fe/Mn=29±1 n=14. Classification: Achondrite (diogenite). Equilibrated, uniform pyroxene compositions. Specimens: Two pieces, 33.75 g and 22.1 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:
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Statistics: This is 1 of 2082 approved meteorites from Morocco (plus 31 unapproved names) (plus 1 impact crater) | ||||||||||||||||||||||||
| Crosslinks: |
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| Also see: |
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| Revision history: |
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