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Northwest Africa 10617 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10617 This is an OFFICIAL meteorite name. Abbreviation: NWA 10617 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 39 approved meteorites classified as R3. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 24 Apr 2016 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 105:
Northwest Africa 10617 (NWA 10617) (Northwest Africa) Purchased: 2014 Classification: Rumuruti chondrite (R3) History: Matthew Martin purchased a 294 g meteorite from a Moroccan dealer at the 2014 Tucson Gem and Mineral Show. Physical characteristics: Exterior of the stone is shiny and wind polished. Sawn surfaces show a breccia of orange-tan clasts to 1 cm and rarer black clasts in an orange-tan matrix. Chondrules prominent to 2.5 mm, though majority <0.9 mm. Petrography: A polished microprobe section chosen from the dominant orange-tan area. Abundant chondrules and fragments set in an orange-tan matrix. Chondrules to 1 mm. Dominant minerals are olivine, sub-calcic augite, and augite with minor low-Ca pyroxene, chromite, and FeNi-sulfide. One small (40 μm) Ni-rich Fe grain found. Sulfides heavily oxidized. Geochemistry: (L. Garvie, ASU) Olivine, Fa36.6±10.5 (Fa16.9-59.9, n=15, Fe/Mn=94.8±22.9, NiO to 0.9 wt%, Cr2O3 to 0.4 wt%, and P2O5 to 0.5 wt%). High-Ca pyroxene, Fs11.5±2.8Wo42.1±5.4 (n=5). Low-Ca pyroxene, Fs8.4Wo0.5 (n=1). Classification: Rumuruti chondrite (R3), weathering high. Specimens: 24.5 g and one polished mount at ASU. | ||||||||||||||||||||||||||||||
Data from: MB105 Table 0 Line 0: |
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Institutions and collections |
ASU: Center for Meteorite Studies, Arizona State University, Tempe, Arizona 85287-1404, United States; Website (institutional address; updated 14 Jan 2012) |
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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 7547 approved meteorites from (Northwest Africa) (plus 1970 unapproved names) |