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| Rabt Sbayta 004 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Rabt Sbayta 004 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2016 Country: Western Sahara Mass:  15.46 kg | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 343 approved meteorites classified as Lunar (feldsp. breccia). [show all] Search for other: Lunar meteorites | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 3 Mar 2017 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 106:
Rabt Sbayta 004 24.242°N, 14.675°W Rio de Oro, Western Sahara Find: 2016 Oct Classification: Lunar meteorite (feldspathic breccia) History: Found in October 2016 by Oubnaamar Salem in the lunar meteorite strewnfield near Gataa Sfar, and subsequently purchased by Darryl Pitt in December 2016 from a Moroccan dealer. Physical characteristics: The single large stone (15464 g) was found sitting on the desert surface. The exterior is wind-ablated and lacks fusion crust; the fresh interior consists of angular whitish clasts in a dark gray matrix containing sparse small vesicles. Petrography: (A. Irving and S. Kuehner, UWS) Breccia consisting of angular mineral grains of anorthite, orthopyroxene, pigeonite (some exsolved), augite, olivine, ilmenite, Cr-rich chromite, Ti-chromite, silica polymorph, fayalite, kamacite and troilite in a finer grained matrix of the same minerals. Portions of the matrix are vesicular and minor calcite is present. Geochemistry: Olivine (Fa38.5-84.1, FeO/MnO = 70-86, N = 5), low-Ca pyroxene (Fs32.7-38.9Wo2.2-5.3, FeO/MnO = 58-73, N = 4), augite (Fs8.5-20.3Wo45.7-40.7, FeO/MnO = 70-71, N = 3), plagioclase (An94.6-97.3Or0.4-0.22, N = 3). Classification: Lunar (feldspathic breccia). Likely paired with NWA 8222 and Rabt Sbayta 002 found in the same area. Specimens: 24.4 g in the form of a two polished endcuts at UWB; remainder with DPitt. | ||||||||||||||||||||||||||||||||||||||
| Data from: MB106 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) UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023) DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address) |
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| References: | Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography:
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Statistics: This is 1 of 52 approved meteorites from Rio de Oro, Western Sahara This is 1 of 286 approved meteorites from Western Sahara (plus 20 unapproved names) | ||||||||||||||||||||||||||||||||||||||
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