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Northwest Africa 11969 | |||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11969 This is an OFFICIAL meteorite name. Abbreviation: NWA 11969 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||
Classification history: |
This is 1 of 119 approved meteorites classified as Eucrite-unbr. [show all] Search for other: Achondrites, Eucrites, and HED achondrites | ||||||||||||||||||||||||||||
Comments: | Approved 23 Sep 2018 | ||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 107:
Northwest Africa 11969 (NWA 11969) (Northwest Africa) Purchased: 2015 Classification: HED achondrite (Eucrite, unbrecciated) History: Purchased by Jay Piatek on December 28, 2015 from a Moroccan meteorite dealer. Physical characteristics: Single stone, saw cut show medium grained, equigranular, basaltic texture. Petrography: (C. Agee, UNM) (C. Agee, UNM) Microprobe examination shows approximately 50% pyroxene and 50% plagioclase. Pyroxene grains show exsolution lamellae. Accessory troilite, chromite, silica, and ilmenite were detected. Geochemistry: (C. Agee, UNM) Low-Ca pyroxene Fs59.4±1.0Wo3.5±1.6, Fe/Mn=30±1, n=3; high-Ca pyroxene Fs33.7±8.6Wo35.2±11.4, Fe/Mn=31±4, n=3; plagioclase An89.6±0.3, n=3. Classification: Eucrite, unbrecciated Specimens: 21 g including a probe mount on deposit at UNM, Jay Piatek holds the main mass. | ||||||||||||||||||||||||||||
Data from: MB107 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. 107, MAPS 55, 460-462
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Geography: |
Statistics: This is 1 of 8559 approved meteorites from (Northwest Africa) (plus 1896 unapproved names) |