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Northwest Africa 10712 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10712 This is an OFFICIAL meteorite name. Abbreviation: NWA 10712 Observed fall: No Year found: 2016 Country: Western Sahara Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 39 approved meteorites classified as Eucrite-melt breccia. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 16 Oct 2016 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 105:
Northwest Africa 10712 (NWA 10712) Western Sahara Purchased: Jan 2016 Classification: HED achondrite (Eucrite, melt breccia) History: Purchased in January 2016; reportedly found near the Algerian border, December 2015. Physical characteristics: Single stone with no fusion crust. A saw-cut surface shows a breccia with light colored clasts, up to 1 cm, set in a dark, shock-melt groundmass, a few small vesicles are present. Petrography: (C. Agee, UNM) This meteorite is an equilibrated monomict basaltic meteorite with ~60% pyroxene, ~35% plagioclase. Most domains are very fine grained (~20 μm) with scattered larger fragmental pyroxenes and plagioclase up to ~700 μm. There are prominent shock melt veins throughout the meteorite. Chromite is ubiquitous. Geochemistry: (C. Agee and M. Spilde, UNM) Low-Ca pyroxene Fs63.4±0.8Wo2.1±0.3, Fe/Mn=33±1, n=9; high-Ca pyroxene Fs27.6±0.3Wo43.2±0.1, Fe/Mn=34±2, n=4; plagioclase An89.2±2.0, n=5. Classification: Eucrite (melt breccia) Specimens: 30.52 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 227 approved meteorites from Western Sahara (plus 19 unapproved names) |