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Northwest Africa 7252 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7252 This is an OFFICIAL meteorite name. Abbreviation: NWA 7252 Observed fall: No Year found: 2007 Country: Morocco Mass: 276 g | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 217 approved meteorites classified as CK5. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (equilibrated), CK chondrites, CK chondrites (type 4-6), and CV-CK clan chondrites | ||||||||||||||||||||||||||
Comments: | Approved 20 Apr 2012 | ||||||||||||||||||||||||||
Writeup |
Writeup from MB 100:
Northwest Africa 7252 (NWA 7252) Morocco Purchased: 2007 Classification: Carbonaceous chondrite (CK5) History: Purchased by B. Reed in Tucson, 2007. Physical characteristics: Single stone, dark weathered fusion crust, interior shows dark brown matrix with sparse chondrules. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows primarily fine-grained texture with olivine, plagioclase, pyroxene, magnetite, iron oxidation from weathering, and a few chondrules to 1 mm. Geochemistry: (C. Agee and N. Wilson, UNM) Olivine Fa27.3±0.6, Fe/Mn=105±8, n=17; low-Ca pyroxene Fs24.8±1.6Wo0.8±0.3, Fe/Mn=69±14, n=3, plagioclase Or2±1Ab46±8An52±8, n=11. Classification: Carbonaceous chondrite (CK5). Fe/Mn, Fs, Fa consistent with CK chondrite. Plagioclase, high An content (An52) consistent with CK; high An content and high Fe/Mn rule out LL. Specimens: 22 g including a probe mount on deposit at UNM; Reed holds the main mass. | ||||||||||||||||||||||||||
Data from: MB100 Table 1 Line 1695: |
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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 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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