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Rabt Sbayta 005
Basic information Name: Rabt Sbayta 005
     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 20.8 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 343 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 26 Apr 2017
Writeuphelp
Writeup from MB 106:

Rabt Sbayta 005        24°16’57.6"N, 14°42’53.6"W

Rio de Oro, Western Sahara

Find: 2016 Aug

Classification: Lunar meteorite (feldspathic breccia)

History: The four fragments were found on a deflation surface by Salem Ben Amar and Amar Zerwal in August 2016. They were purchased from Mohamed Elguirah by Jean Redelsperger in Tan Tan in September 2016.

Physical characteristics: Uncrusted, irregular, dark stones with whitish clasts. Cut surface reveals dark interior with white clasts up to 2 mm.

Petrography: Brecciated with lithic and mineral clasts (olivine, pigeonite, plagioclase) in a very fine grained plagioclase matrix. Numerous vesicles with diameter 10-20 μm. are present in the matrix. Accessory minerals include chromite, ilmenite. Rare kamacite.

Geochemistry: Olivine Fa33.9±3.3, range Fa31.4-41.2, FeO/MnO = 85.8±9.7 (range 67-98), N=6. Pigeonite Fs40.5±0.8Wo10.2±3.1, FeO/MnO=54.0±6.5 (N=5). Plagioclase An96.5±0.6Ab3.4±0.6Or0.1±0.0 (N=4). Chromite Cr#=Cr/(Cr+Al)=0.64-0.67 (N=2). Magnetic susceptibilty log χ (× 10-9 m3/kg) = 2.58.

Classification: Lunar (feldspathic breccia). Likely paired with Rabt Sbayta 002 and Rabt Sbayta 004 found in the same area.

Specimens: 4.44 g and polished section at CEREGE. Main mass with Jean Redelsperger.

Data from:
  MB106
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Place of purchase:Tan Tan
Date:2016 Aug
Latitude:24°16'57.6"N
Longitude:14°42'53.6"W
Mass (g):20.78
Pieces:4
Class:Lunar (feldsp. breccia)
Weathering grade:low
Fayalite (mol%):33.9±3.3 (N=6)
Ferrosilite (mol%):40.5±0.8 (N=5)
Wollastonite (mol%):10.2±3.1
Magnetic suscept.:2.58
Classifier:J. Gattacceca, CEREGE
Type spec mass (g):4.44
Type spec location:CEREGE
Main mass:Jean Redelsperger
Finder:Salem Ben Amar and Amar Zerwal
Comments:work name JR044; submitted by Jérôme Gattacceca
Institutions
   and collections		 CEREGE: CEREGE BP 80 Avenue Philibert, Technopole de l'Arbois 13545 Aix-en-Provence Cedex 4 France, France (institutional address; updated 10 Jun 2023)
Catalogs:
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:

Western Sahara
Coordinates:
     Recommended::   (24° 16' 58"N, 14° 42' 54"W)

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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