|
Northwest Africa 11893 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 11893 This is an OFFICIAL meteorite name. Abbreviation: NWA 11893 Observed fall: No Year found: 2017 Country: (Northwest Africa) Mass: 526 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 658 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 3 Aug 2018 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 107:
Northwest Africa 11893 (NWA 11893) (Northwest Africa) Purchased: Feb 2017 Classification: Ureilite Petrography: The sample has a fine grained brecciated texture. It contains olivine (~65%) with reduced rims, pyroxene (pigeonite) (~25%), Metals in veins around grain boundaries, and graphite. Olivines are up to 3 mm. Graphite was found. Geochemistry: Mineral Compositions and Geochemistry: Olivine core and rim compositions vary, with reduced rims. Cores Fa16.0±0.1 (Fa15.9-16.1, N=10); rims Fa4.5±2.3 (Fa1.9 8.4, N=10). All pyroxenes are clinopyroxene, Fs13.7±0.1Wo7.4±0.1 (Fs13.4-13.8Wo7.3-7.5, N=10). Classification: Ureilite Specimens: 21.0 g including a thin section and polished mount at UWO. | ||||||||||||||||||||||||||||||
Data from: MB107 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||
Institutions and collections |
UWO: University of Western Ontario, Department of Earth Sciences, BGS 1026, 1151 Richmond St. N, London, Ontario, Canada N6A 5B7, Canada (institutional address; updated 18 Jul 2015) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
| ||||||||||||||||||||||||||||||
Photos: |
| ||||||||||||||||||||||||||||||
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.
|