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Northwest Africa 12695 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 12695 This is an OFFICIAL meteorite name. Abbreviation: NWA 12695 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: 224 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 83 approved meteorites classified as Lunar (anorth). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 9 Jul 2019 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 108:
Northwest Africa 12695 (NWA 12695) (Northwest Africa) Purchased: March 2015 Classification: Lunar meteorite (anorth) History: Purchased from a meteorite dealer in Erfoud, Morocco. Physical characteristics: Single stone consisting of approximately 80% white to light-gray colored, brecciated lithology and 20% dark-colored lithology containing fragments of white to light-gray colored clasts. Petrography: (C. Agee,UNM) Microprobe examination was performed on a polished slab of the UNM deposit sample. The dominant lithology is an anorthosite with approximately 90-95% modal plagioclase with minor amounts of ubiquitous olivine, pyroxene, and ilmenite. The minor lithology is a fragmental breccia of primarily plagioclase, olivine, and pyroxene. Minor amounts of ilmenite, chromite, and silica-alkali feldspar intergrowths were also observed. Geochemistry: (C. Agee,UNM) Plagioclase An96.2±0.8Ab3.6±0.7Or0.2±0.1, n=9; clinopyroxene Fs31.9±10.0Wo20.0±8.9, Fe/Mn=58±6, n=13; olivine Fa38.5±2.0, Fe/Mn=103±2. Classification: Lunar, anorthosite. Specimens: 21.4 g on deposit at UNM, DPitt holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB108 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. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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