![]() |
||
|
Northwest Africa 10264 | |||||||||||||||||||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Basic information | Name: Northwest Africa 10264 This is an OFFICIAL meteorite name. Abbreviation: NWA 10264 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: ![]() | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 22 approved meteorites classified as LL(L)3. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 22 Oct 2016 | ||||||||||||||||||||||||||||||||
Writeup![]() |
Writeup from MB 105:
Northwest Africa 10264 (NWA 10264) (Northwest Africa) Purchased: 2015 Feb Classification: Ordinary chondrite (LL(L)3) History: Purchased by Gary Fujihara in February 2015 from a Moroccan dealer. Petrography: (A. Irving and S. Kuehner, UWS) Closely packed, well-formed chondrules (apparent diameter up to 2.7 mm) are set in a sparse, finer grained matrix containing altered metal. Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.38. Geochemistry: Olivine (Fa0.8-67.0; Cr2O3 in ferroan examples = 0.15-0.28 wt.%, mean 0.22±0.05 wt.%, N = 6), orthopyroxene (Fs1.7-6.5Wo0.5-0.6, N = 3), subcalcic augite (Fs6.6Wo24.0), augite (Fs1.2Wo38.3). Classification: Ordinary chondrite LL(L)3. The range in Fa content in olivine and the Cr2O3 contents in ferroan olivine are consistent with a relatively low subtype (estimated to be 3.3 to 3.4). Specimens: 20.4 g including one polished thin section at UWB; main mass with Mr. G. Fujihara. | ||||||||||||||||||||||||||||||||
Data from: MB105 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) UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012) |
||||||||||||||||||||||||||||||||
Catalogs: |
| ||||||||||||||||||||||||||||||||
References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
| ||||||||||||||||||||||||||||||||
Photos: |
| ||||||||||||||||||||||||||||||||
Geography: |
Statistics: This is 1 of 7547 approved meteorites from (Northwest Africa) (plus 1970 unapproved names) |