|
Northwest Africa 11956 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 11956 This is an OFFICIAL meteorite name. Abbreviation: NWA 11956 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: 720 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 658 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 15 Sep 2018 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11956 (NWA 11956) (Northwest Africa) Purchased: 2015 Oct Classification: Ureilite History: Purchased by Marc Jost in October 2015 from a Moroccan dealer at the Munich Show. Petrography: (A. Irving and S. Kuehner, UWS) Relatively coarse grained protogranular aggregate composed of subequal amounts of olivine (exhibiting reduced magnesian rims containing fine Fe metal) and polysynthetically twinned clinopyroxene (both pigeonite and augite). No evidence of microdiamond was found. Geochemistry: Olivine (cores Fa10.8-11.0; rims Fa0.9-5.3; N = 4), low-Ca pyroxene (Fs11.0-11.1Wo4.6-4.7, N = 2), high-Ca pyroxene (Fs5.8-6.8Wo37.2-37.1, N = 2). Classification: Ureilite. Specimens: 27.8 g including one polished thin section at UWB; remainder with Space Jewels Switzerland. | ||||||||||||||||||||||||||||||
Data from: MB107 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, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) SJS: Space Jewels Switzerland, 2555 Brügg, Switzerland (private address; updated 3 Jan 2010) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
| ||||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
Also see: |
This lists the most popular meteorites among people who looked up this meteorite.
| ||||||||||||||||||||||||||||||
Revision history: |
This lists important revisions made to data for this record.
|