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Northwest Africa 7332 | |||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 7332 This is an OFFICIAL meteorite name. Abbreviation: NWA 7332 Observed fall: No Year found: 2012 Country: Morocco Mass: 59.3 g | ||||||||||||||||||||||||||
Classification history: |
This is 1 of 470 approved meteorites (plus 2 unapproved names) classified as CV3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||
Comments: | Approved 26 Jul 2012 | ||||||||||||||||||||||||||
Writeup |
Writeup from MB 101:
Northwest Africa 7332 (NWA 7332) Morocco Purchased: May 2012 Classification: Carbonaceous chondrite (CV3) History: Purchased by Sean Tuturow in Morocco, May 2012. Physical characteristics: Single stone, black, smooth fusion-crusted exterior, saw cut reveals numerous oval-shaped chondrules up to 3 mm, some reddish in color, set in a black matrix. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous irregularly to oval-shaped POP chondrules (500 μm to 3 mm). At least three populations of olivine and pyroxene, many pyroxenes with high Al-content. Matrix contains olivine, pyroxene, finely dispersed sulfide, spinel, and a few metal grains. Geochemistry: (C. Agee and N. Wilson, UNM) Type I chondrules: olivine Fa3.9±2.2, Fe/Mn=60±33, n=15; low-Ca pyroxene Fs1.6±0.6Wo1.6±1.2, Fe/Mn=18±12, n=9; aluminous diopside Fs2.6±2.8Wo40.4±1.2, Al2O3=3.96±2.06 wt%, n=15. Type II chondrules: olivine Fa18.1±10.4, Fe/Mn=123±35, n=4; aluminous augite Fs21.2±8.1Wo29.6±3.8, Al2O3=6.96±3.84 wt%, n=3. Matrix: olivine Fa53.5±4.3, Fe/Mn=131±8, n=9; aluminous pyroxene Fs52.1±9.0Wo4.2±6.5, Fe/Mn=128±22, Al2O3=2.87±2.04 wt%, n=18; hercynite-rich spinel; and taenite Ni0.60Fe0.40. Classification: Carbonaceous chondrite (CV3), weathering grade W2. Specimens: 12.95 g including a probe mount on deposit at UNM, Sean Tuturow 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) |
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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) | ||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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