![]() |
||
|
Northwest Africa 12216 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 12216 This is an OFFICIAL meteorite name. Abbreviation: NWA 12216 Observed fall: No Year found: 2018 Country: Algeria Mass: ![]() | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 291 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 5 Jan 2019 | ||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 108:
Northwest Africa 12216 (NWA 12216) Algeria Purchased: 2018 May Classification: Lunar meteorite (feldspathic breccia) History: Found near Wad Alma, Algeria and purchased by Darryl Pitt in May 2018 from a Mauritanian dealer. Physical characteristics: A small (34.4 g) unusually hard, dark-gray stone, mostly very fine grained and vesicular with sparse white clasts. Petrography: (A. Irving and S. Kuehner, UWS) Small mineral clasts of anorthite, low-Ca pyroxene, subcalcic augite and olivine are set in a very fine-grained, vesicular matrix containing ilmenite, Ti-poor chromite, kamacite and troilite. Geochemistry: Olivine (Fa19.9-37.1, FeO/MnO = 80-119, N = 3), low-Ca pyroxene (Fs26.9Wo4.9, FeO/MnO = 53), pigeonite (Fs23.8Wo7.1, FeO/MnO = 50), subcalcic augite (Fs62.6Wo28.7, FeO/MnO = 75; Fs13.3Wo39.1, FeO/MnO = 36), plagioclase (An96.9-97.4Wo0.2-0.1, N = 2). Classification: Lunar (feldspathic regolithic breccia). Specimens: 9.2 g including one polished endcut at UWB; remainder with DPitt. | ||||||||||||||||||||||||||||||
Data from: MB108 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||
Institutions and collections |
UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
| ||||||||||||||||||||||||||||||
Geography:![]() |
Statistics: This is 1 of 1250 approved meteorites from Algeria (plus 29 unapproved names) (plus 4 impact craters) |