Northwest Africa 11056 | |||||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 11056 This is an OFFICIAL meteorite name. Abbreviation: NWA 11056 Observed fall: No Year found: 2016 Country: (Northwest Africa) Mass: 289 g | ||||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 271 approved meteorites classified as LL3. [show all] Search for other: LL chondrites, LL chondrites (type 3), Ordinary chondrites, and Ordinary chondrites (type 3) | ||||||||||||||||||||||||||||||||
Comments: | Approved 15 Jun 2017 | ||||||||||||||||||||||||||||||||
Writeup | Writeup from MB 106: Northwest Africa 11056 (NWA 11056) (Northwest Africa) Purchased: 2016 Oct Classification: Ordinary chondrite (LL3) History: Purchased by John Higgins in October 2016 from a dealer in Nouakchott, Mauritania. Petrography: (A. Irving and S. Kuehner, UWS) Fairly closely packed, well-formed chondrules (apparent diameter 500±300 μm) are set in a sparse, fine-grained matrix containing altered metal. Geochemistry: Olivine (Fa0.4-47.3, Cr2O3 in ferroan examples 0.05-0.11 wt.%, mean 0.08±0.03 wt.%, N = 7), orthopyroxene (Fs2.5-22.7Wo0.2-2.2, N = 3), pigeonite (Fs31.0Wo16.8), augite (Fs11.2Wo45.3). Magnetic susceptibility log χ (× 10-9 m3/kg) = 3.73. Classification: Ordinary chondrite (LL3). Specimens: 23.95 g including one polished thin section at UWB; remainder with Mr. J. Higgins. | ||||||||||||||||||||||||||||||||
Data from: MB106 Table 0 Line 0: |
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Institutions and collections | UWS: University of Washington, Department of Earth and Space Sciences, |
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