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Northwest Africa 10620 | |||||||||||||||||||||||||||||||
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Basic information | Name: Northwest Africa 10620 This is an OFFICIAL meteorite name. Abbreviation: NWA 10620 Observed fall: No Year found: 2016 Country: (Northwest Africa) Mass: 254 g | ||||||||||||||||||||||||||||||
Classification history: |
This is 1 of 68 approved meteorites classified as R4. [show all] Search for other: Rumuruti chondrites, Rumuruti chondrites (type 4-7) | ||||||||||||||||||||||||||||||
Comments: | Approved 30 Apr 2016 | ||||||||||||||||||||||||||||||
Writeup |
Writeup from MB 105:
Northwest Africa 10620 (NWA 10620) (Northwest Africa) Purchased: 2016 Jan Classification: Rumuruti chondrite (R4) History: Purchased by Aras Jonikas in January 2016 from a Moroccan dealer. Physical characteristics: A group of five identical stones with black fusion crusts and gray interiors (total weight 254.15 g). Petrography: Very fresh specimen consisting of separated, well-formed chondrules (mostly with apparent diameter 0.2-1 mm, but one 2 mm; some with pentlandite-rich rims) in a finer matrix containing relatively abundant pentlandite. Other minerals are olivine, orthopyroxene, clinopyroxene, sodic plagioclase, Ti-bearing chromite and troilite. Geochemistry: Olivine (Fa39.4-39.6, N = 3), orthopyroxene (Fs29.9-30.7Wo2.4-3.0, N = 3), clinopyroxene (Fs11.0-11.1Wo45.0-45.1, N = 2), plagioclase (An9.0-13.7Or4.1-3.4, N = 2). Classification: R4 chondrite. Specimens: 21.44 g including one polished thin section at PSF; remainder with Mr. A. Jonikas. | ||||||||||||||||||||||||||||||
Data from: MB105 Table 0 Line 0: |
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Institutions and collections |
PSF: Planetary Studies Foundation,10 Winterwood Lane, Unit B, Galena, Illinois 61036-9283, United States; Website (institutional address; updated 1 Dec 2011) UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012) |
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Catalogs: |
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References: | Published in Meteoritical Bulletin, no. 105, MAPS 52, 2411, September 2017. http://onlinelibrary.wiley.com/doi/10.1111/maps.12944/full
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Geography: |
Statistics: This is 1 of 9699 approved meteorites from (Northwest Africa) (plus 1854 unapproved names) | ||||||||||||||||||||||||||||||
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Revision history: |
This lists important revisions made to data for this record.
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