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Northwest Africa 10064 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10064 This is an OFFICIAL meteorite name. Abbreviation: NWA 10064 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: 766 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 477 approved meteorites classified as LL3. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 5 Apr 2015 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 104:
Northwest Africa 10064 (NWA 10064) (Northwest Africa) Purchased: 2015 Classification: Ordinary chondrite (LL3) History: Purchased in Morocco, 2015. Physical characteristics: Six identical appearing pieces with weathered exterior. A saw cut reveals many densely packed chondrules of variable size. Petrography: (C. Agee, UNM) Microprobe examination of a polished mount shows numerous unequilibrated chondrules, apparent mean diameter 670±300 μm (n=38), many with porphyritic, igneously zoned olivines and pyroxenes, containing mesostasis or glass. Opaque, fine-grained matrix is present throughout. A lithologically distinct domain or clast (~1-cm) was dominated by fine-grained matrix with low microprobe totals, consistent with the presence of phyllosilicates; no chondrules were observed in this lithology. Geochemistry: (C. Agee and N. Muttik, UNM) Chondrule olivine Fa22.4±10.5, Fe/Mn=90±71, Cr2O3=0.08±0.08 wt%, n=12, chondrule low-Ca pyroxene Fs12.9±5.0Wo1.3±1.5, Fe/Mn=27±6, n=8. Classification: Ordinary chondrite LL3, estimated type 3.2-3.4 based on mean values and 1-sigma of Fa and Cr2O3-content of ferroan olivines. Specimens: 20.5 g including a probe mount on deposit at UNM, Steve Arnold holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB104 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. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Geography: |
Statistics: This is 1 of 9627 approved meteorites from (Northwest Africa) (plus 1865 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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