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Rabt Sbayta 003
Basic information Name: Rabt Sbayta 003
     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:help 20.6 g
Meteoritical Bulletin:  MB 107  (2018)  Martian (polymict breccia)
MB 106  (2018)  Martian
Recommended:  Martian (polymict breccia)    [explanation]

This is 1 of 18 approved meteorites classified as Martian (polymict breccia).   [show all]
Search for other: Martian meteorites
Comments: Approved 3 Mar 2017
Revised 16 Nov 2018: Updated class; see NWA 7034)
Writeup from MB 106:

Rabt Sbayta 003        24.122°N, 14.772°W

Rio de Oro, Western Sahara

Find: 2016 Nov

Classification: Martian meteorite

History: Found in the same area as NWA 7034 and paired stones in November 2016, and shortly thereafter purchased by Ben Hoefnagels from a dealer in Taliouine, Morocco.

Physical characteristics: A single black, roughly equidimensional stone (20.57 g) with a glossy exterior and some areas of degraded fusion crust with remnant expansion cracks. Small whitish to yellowish-green clasts are visible within a black, fine grained matrix.

Petrography: (A. Irving and S. Kuehner, UWS) Polymict breccia composed mainly of various angular mineral clasts plus rare polymineralic clasts in a finer grained matrix. Mineral clasts include orthopyroxene, labradorite, ilmenite, Ti-bearing magnetite, ulvöspinel, altered pyrite, Na-K feldspar, chlorapatite and rare zircon.

Geochemistry: Orthopyroxene (Fs19.6-46.7Wo3.1-4.6, FeO/MnO = 32-41, N = 3), subcalcic augite (Fs27.3-32.6Wo40.4-36.9, FeO/MnO = 15-33, N = 2), plagioclase (An35.3-45.2Or2.8-2.1, N = 2). Magnetic susceptibility log χ (× 10-9 m3/kg) = 4.48.

Classification: Martian (polymict regolith breccia). Paired with NWA 7034, NWA 7475, NWA 7533, NWA 10922 and others from the same area.

Specimens: 4.2 g including one polished thin section at UWB; main polished endcut mass with Mr. B. Hoefnagels.

Data from:
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Place of purchase:Taliouine
Date:2016 Nov
Mass (g):20.57
Shock stage:low
Weathering grade:low
Ferrosilite (mol%):19.6-46.7; 27.3-32.6
Wollastonite (mol%):3.1-4.6; 40.4-36.9
Magnetic suscept.:4.48
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):4.2
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:BH040; submitted by A. Irving
   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)
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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Western Sahara
     Recommended::   (24° 7' 19"N, 14° 46' 19"W)

     This is 1 of 50 approved meteorites from Rio de Oro, Western Sahara
     This is 1 of 270 approved meteorites from Western Sahara (plus 20 unapproved names)
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