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Northwest Africa 7346 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7346 This is an OFFICIAL meteorite name. Abbreviation: NWA 7346 Observed fall: No Year found: 2009 Country: Morocco Mass: 269 g | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 2930 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 27 Jul 2012 | ||||||||||||||||||||||||||||
Writeup |
Writeup from MB 101:
Northwest Africa 7346 (NWA 7346) Morocco Purchased: 2009 Classification: Ordinary chondrite (LL6) History: Purchased by B. Reed in Tucson, 2009. Physical characteristics: Single stone, rough, dark weathered exterior, saw cut reveals a heterogeneous texture of light and dark clasts, melt veins, and very finely dispersed metal grains set in a medium gray matrix. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows a breccia with a mix of fine-grained, cataclastic zones and larger clasts up to a few mm, scattered remnant chondrules were observed, ubiquitous plagioclase, troilite, and kamacite, metal fresh and unoxidized. The overall texture suggests high shock grade. Geochemistry: (C. Agee and N. Wilson, UNM) Olivine Fa30.7±1.0, Fe/Mn=62±2, n=19; low-Ca pyroxene Fs25.3±0.5Wo2.2±0.8, Fe/Mn=36±1, n=21; high-Ca pyroxene Fs10.1Wo44.7, Fe/Mn=23, n=1; plagioclase Ab80.3±5.3An13.9±8.1Or6.2±3.4, n=12. Classification: Ordinary chondrite (LL6), weathering grade W1. Specimens: 23.7 g including a probe mount on deposit at UNM, Reed holds the main mass. | ||||||||||||||||||||||||||||
Data from: MB101 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) 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. 101, MAPS 50, 1661, 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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