|
Northwest Africa 8306 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 8306 This is an OFFICIAL meteorite name. Abbreviation: NWA 8306 Observed fall: No Year found: 2014 Country: (Northwest Africa) Mass: 1389 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 340 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||
Comments: | Approved 10 Nov 2014 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 103:
Northwest Africa 8306 (NWA 8306) (Northwest Africa) Purchased: 2014 Feb Classification: Lunar meteorite (feldspathic breccia) History: Purchased by Darryl Pitt in February 2014 from a Moroccan dealer at the Tucson Gem and Mineral Show. Physical characteristics: Single stone (1389 g) lacking fusion crust and composed of pale gray, pale yellow and white clasts in a very dark gray matrix. Petrography: (A. Irving and S. Kuehner, UWS) Breccia composed of angular clasts in a partly glassy matrix containing trapped microbubbles. Minerals are olivine, pigeonite, fayalite, anorthite, silica (as separate clasts), hedenbergite, Ti-poor chromite, Ti-rich chromite, ilmenite, and minor exsolved pigeonite, baddeleyite, kamacite and barite. One fine grained, quenched-textured basaltic clast was found. Geochemistry: Olivine (Fa26.5-36.0; FeO/MnO = 102-116, N = 3), pigeonite (Fs19.8-24.0Wo19.9-17.0; FeO/MnO = 47-56; Fs28.8Wo6.5; FeO/MnO = 55), fayalite (Fa72.6; FeO/MnO = 104). Bulk composition (R. Korotev, WUSL) INAA of subsamples gave the following mean abundances (in wt.%) FeO 8.9, Na2O 0.41; (in ppm) Sc 17.1, Ni 230, La 7.3, Sm 3.30, Eu 0.93, Yb 2.30, Lu 0.317, Hf 2.4, Th 1.0. Classification: Lunar (feldspathic regolithic breccia). Specimens: A 20.2 g specimen with one polished surface is at UWB. The main mass is held by DPitt. | ||||||||||||||||||||||||||||||
Data from: MB103 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) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
| ||||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 9710 approved meteorites from (Northwest Africa) (plus 1853 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.
|