|
Northwest Africa 10704 | |||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 10704 This is an OFFICIAL meteorite name. Abbreviation: NWA 10704 Observed fall: No Year found: 2016 Country: Western Sahara Mass: 156 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 660 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||||||||||
Comments: | Approved 20 Jun 2016 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Northwest Africa 10704 (NWA 10704) Western Sahara Purchased: Jan 2016 Classification: Ureilite History: Purchased in January 2016; reportedly found in El-Hamada, November 2015. Physical characteristics: Single stone with no fusion crust. A saw-cut surface shows a coarse-grained mosaic of dark-gray silicate grains. Petrography: (C. Agee, UNM) Olivine is the major mineral in this meteorite. Minor pigeonite is present. Olivines show reduced rims typical of ureilites. Graphite and metal occupy grain boundaries. Most olivine grains range in size from 1000-1500 μm. Geochemistry: (C. Agee and M. Spilde, UNM) Olivine rim Fa14.0, Fe/Mn=30, n=1; Olivine cores Fa21.3±1.1, Fe/Mn=50±3, Cr2O3=0.55±0.02 (wt%), CaO=0.32±0.02 (wt%), n=7; Pigeonite Fs18.5±0.1Wo10.2±0.0, Fe/Mn=28±1, n=2. Classification: Ureilite Specimens: 20.08 g including a probe mount on deposit at UNM, DPitt holds the main mass. | ||||||||||||||||||||||||||||||
Data from: MB105 Table 0 Line 0: |
|
||||||||||||||||||||||||||||||
Institutions and collections |
UNM: Institute of Meteoritics
MSC03 2050
University of New Mexico
Albuquerque NM 87131-1126
USA, United States; Website (institutional address; updated 12 Feb 2015) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
| ||||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 280 approved meteorites from Western Sahara (plus 20 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.
|