|
Northwest Africa 13311 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 13311 This is an OFFICIAL meteorite name. Abbreviation: NWA 13311 Observed fall: No Year found: 2019 Country: (Northwest Africa) Mass: 875 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 82 approved meteorites classified as CK3. [show all] Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CK chondrites, CK3 chondrites, and CV-CK clan chondrites | ||||||||||||||||||||||||||||||
Comments: | Approved 13 Jun 2020 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 109:
Northwest Africa 13311 (NWA 13311) (Northwest Africa) Purchased: 2019 Sep Classification: Carbonaceous chondrite (CK3) History: Purchased by Mbark Arjdal in April 2019 from a dealer in Timbuktu, Mali. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Well-formed, relatively unequilibrated, granular, glass-bearing and Cr-magnetite-bearing chondrules (apparent diameter 920±380 µm, N = 23) plus amoeboid, very fine grained CAI are set in a fine grained matrix (~30 vol.%, sepia brown in thin section) containing pentlandite and troilite. CAI contain gehlenite, aluminous diopside, pentlandite, albitic plagioclase and hedenbergite. Geochemistry: Olivine (Fa31.4±14.3, range Fa5.3-46.3, N = 8), low-Ca pyroxene (Fs0.9±0.3Wo0.9±0.2, range Fs0.6-1.1Wo0.8-1.1, N = 3), augite (Fs1.7Wo37.0; Fs0.5Wo1.6; Fs23.3Wo42.6; Al2O3 = 1.5-4.3 wt.%, N = 3), plagioclase (An84.6Or0.0). Classification: Carbonaceous chondrite (CK3). Specimens: 39.3 g including one polished thin section at UWB; remainder with Mr. M. Arjdal. | ||||||||||||||||||||||||||||||
Data from: MB109 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) WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
| ||||||||||||||||||||||||||||||
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.
|