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Northwest Africa 7250 | |||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7250 This is an OFFICIAL meteorite name. Abbreviation: NWA 7250 Observed fall: No Year found: 2012 Country: Morocco Mass: ![]() | ||||||||||||||||||||||||
Classification history: |
This is 1 of 2854 approved meteorites (plus 2 unapproved names) classified as LL6. [show all] Search for other: LL chondrites, LL chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||
Comments: | Approved 13 Mar 2012 | ||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 100:
Northwest Africa 7250 (NWA 7250) Morocco Purchased: 2012 Classification: Ordinary chondrite (LL6) History: Purchased by Blaine Reed in Tucson, February 2012. Physical characteristics: 816 g fusion-crusted stone. Interior shows angular breccia clasts to 5 mm set in a light-gray matrix, with scattered fine metal/sulfide, but also a few larger sulfide grains to 2 mm. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows dominant olivine, with some orthopyroxene, clinopyroxene, and ubiquitous albitic plagioclase crystals to 100 μm, a few indistinct chondrules, one very large mixed-phase sulfide grain. Geochemistry: (C. Agee and N. Wilson, UNM) Olivine Fa29.9±1.4, Fe/Mn=61±3 (n=13). Classification: Ordinary chondrite (LL6), possible mixed LL6-chondrite lithologies, weathering grade W1. Specimens: 24.0 g including a probe mount on deposit at UNM, Reed holds the main mass. | ||||||||||||||||||||||||
Data from: MB100 Table 1 Line 1694: |
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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) Reed: Blaine Reed, P.O. Box 1141, Delta, CO 81416, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Geography:![]() |
Statistics: This is 1 of 1871 approved meteorites from Morocco (plus 24 unapproved names) (plus 1 impact crater) |