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Northwest Africa 10709 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10709 This is an OFFICIAL meteorite name. Abbreviation: NWA 10709 Observed fall: No Year found: 2016 Country: Western Sahara Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 22 approved meteorites classified as R3-6. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 20 Jun 2016 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 105:
Northwest Africa 10709 (NWA 10709) Western Sahara Purchased: Jan 2016 Classification: Rumuruti chondrite (R3-6) History: Purchased in January 2016; reportedly found in El-Hamada, December 2015. Physical characteristics: Single stone with weathered fusion crust. A saw-cut surface shows a few scattered chondrules and some dark-colored clasts set in an orange-brown fine grained groundmass. Petrography: (C. Agee, UNM) This meteorite contains at least two petrologic type domains, R6 and R3. R6 is primarily the olivine-rich domains with indistinct chondrules, the R3 is characterized by domains with distinct porphyritic chondrules containing mesostasis or glass. Geochemistry: (C. Agee and M. Spilde, UNM) R6 olivine Fa39.2±0.3, Fe/Mn=84±5, NiO=0.21±0.08 wt%, n=17; R3 olivine Fa17.3±12.7, Fe/Mn=63±25, n=5; low-Ca pyroxene Fs10.9±6.0Wo0.6±0.7, Fe/Mn=24±19, n=6; high-Ca pyroxene Fs12.3±2.4Wo40.8±6.4, Fe/Mn=40±1, n=3; pigeonite Fs27.2Wo7.4, Fe/Mn=53, n=1; oligoclase Ab86.9±6.5An9.7±2.0Or4.1±1.4, n=3; labradorite Ab34.1An65.7Or0.2. Classification: Rumuruti chondrite (R3-6) Specimens: 20.81 g including a probe mount on deposit at UNM, DPitt holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB105 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) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography:![]() |
Statistics: This is 1 of 224 approved meteorites from Western Sahara (plus 19 unapproved names) |