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Northwest Africa 14013 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 14013 This is an OFFICIAL meteorite name. Abbreviation: NWA 14013 Observed fall: No Year found: 2015 Country: (Northwest Africa) Mass: 26.5 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 12 approved meteorites classified as R3-4. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3) | ||||||||||||||||||||||||||||||
Comments: | Approved 17 Jul 2021 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 110:
Northwest Africa 14013 (NWA 14013) (Northwest Africa) Purchased: 2015 Jun Classification: Rumuruti chondrite (R3-4) History: Purchased by Ziyao Wang in June 2015 from a Moroccan dealer at the Hunan Mineral and Gem Show in Chenzhou City, China. Petrography: (A. Irving, UWS and P. Carpenter, WUSL) Very fresh specimen with no evidence of weathering effects. Breccia composed of discrete unequilibrated chondrules (apparent diameter 570 ± 330 µm, N = 25) plus Type 3 and Type 4 lithic clasts set in a fine grained matrix containing pentlandite, troilite, pyrrhotite, low-Ti chromite and sodic to intermediate plagioclase. A tiny OsFe alloy inclusion was found in one troilite grain. Geochemistry: Olivine in unequilibrated chondrules and Type 3 clasts (Fa26.7±16.9, range Fa4.8-39.7, N = 5), olivine in equilibrated Type 4 clasts (Fa39.3±0.2, range Fa39.1-39.4, N = 2), low-Ca pyroxene (21.4±9.7Wo1.1±0.9, range Fs7.5-29.8Wo0.3-2.2, N = 4), augite (10.5±0.8Wo46.3±0.6, range Fs9.9-11.0Wo45.8-46.7, N = 2). Classification: R3-4 chondrite breccia. This specimen is notable for its freshness and the presence of a rare accessory Os-rich alloy phase. Specimens: 5.3 g including one polished thin section at UWB; remainder with Mr. Z. Wang. | ||||||||||||||||||||||||||||||
Data from: MB110 Table 0 Line 0: |
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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) |
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Catalogs: |
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References: | Published in Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Photos: |
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Geography: |
Statistics: This is 1 of 9589 approved meteorites from (Northwest Africa) (plus 1869 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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