|
Northwest Africa 2376 | |||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 2376 This is an OFFICIAL meteorite name. Abbreviation: NWA 2376 Observed fall: No Year found: 2004 Country: (Northwest Africa) Mass: 123 g | ||||||||||||||||||||||
Classification history: |
This is 1 of 660 approved meteorites classified as Ureilite. [show all] Search for other: Achondrites, Ureilites | ||||||||||||||||||||||
Writeup |
Writeup from MB online:
Northwest Africa 2376 Northwest Africa Purchased 2004 August Achondrite (ureilite) A single stone of 123 g was purchased in Erfoud, Morocco. Description and classification (J. Wittke and T. Bunch, NAU): typical ureilite that mostly consists of medium to coarse-grained olivine and pigeonite. Extensive reduction (R5) has affected more than 60 vol. % of all olivine and ~15 vol. % of pigeonite. Carbonaceous-metal-silicate masses are also extensively developed. Olivine cores, Fa12.3 (FeO/MnO = 19), Cr2O3 = 0.60 wt. %; olivine rims, down to Fa1.2; pigeonite cores, Fs10.9Wo5.2. Also, interstitial Al-rich augite, K-rich glass, Fe3C, and probable diamond. Interstitial metal is mostly weathered to various iron oxides; no observable primary graphite. Low weathering grade and lightly shocked (S2). Specimens: type sample, 21.1 g, NAU; main mass, Birdsell. | ||||||||||||||||||||||
Data from: MB89 Table 7 Line 217: |
|
||||||||||||||||||||||
Institutions and collections |
NAU: Geology, Bldg 12
Knoles Dr
Northern Arizona University, Flagstaff, AZ 86011, United States; Website (institutional address; updated 12 Apr 2012) Birdsell: Arizona Skies Meteorites, P.O. Box 2412, Flagstaff, AZ 86003, United States; Website (private address) |
||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 89, MAPS 40, A201-A263 (2005)
| ||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 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.
|