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Rabt Sbayta 008
Basic information Name: Rabt Sbayta 008
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2017
Country: Western Sahara
Mass:help 229 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Lunar (feldsp. breccia)
Recommended:  Lunar (feldsp. breccia)    [explanation]

This is 1 of 334 approved meteorites classified as Lunar (feldsp. breccia).   [show all]
Search for other: Lunar meteorites
Comments: Approved 11 Sep 2017
Writeuphelp
Writeup from MB 106:

Rabt Sbayta 008        24.166°N, 14.507°W

Rio de Oro, Western Sahara

Find: 2016-Nov

Classification: Lunar meteorite (feldspathic breccia)

History: Purportedly found at a location NE of Bir Anzarane and purchased by Ben Hoefnagels in January 2017 from a dealer in Ouarzazate, Morocco.

Physical characteristics: A single broken, pale beige-colored, roughly prismatic-shaped stone (229 g) with degraded fusion crust coating three sides.

Petrography: (A. Irving and S. Kuehner, UWS) Leucocratic, clast-rich breccia composed predominantly of anorthite, olivine, pigeonite and subcalcic augite with accessory ilmenite, chromite, troilite and kamacite.

Geochemistry: Olivine (Fa24.4-60.5, FeO/MnO = 84-89, N = 3), orthopyroxene (Fs20.6Wo3.2, FeO/MnO = 51), pigeonite (Fs21.29Wo7.7, FeO/MnO = 46), subcalcic augite (Fs21.0Wo23.6; Fs29.5Wo32.1; FeO/MnO = 41-54), plagioclase (An95.6-96.3Or0.2, N = 2).

Classification: Lunar (feldspathic breccia). Although this lunar specimen was found in the same dense collection area as the Rabt Sbayta 002, Rabt Sbayta 004, Rabt Sbayta 005 and Rabt Sbayta 006 stones (but at a different location from Gataa Sfar), it differs from those stones in both petrologic and bulk compositional characteristics and thus is not paired with them (nor with Rabt Sbayta 007).

Specimens: 24.3 g including a polished slice at UWB; remainder with Mr. B. Hoefnagels.

Data from:
  MB106
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Place of purchase:Ouarzazate
Date:2016-Nov
Latitude:24.166°N
Longitude:14.507°W
Mass (g):229
Pieces:1
Class:Lunar (feldsp. breccia)
Shock stage:low
Weathering grade:low
Fayalite (mol%):24.4-60.5
Ferrosilite (mol%):20.6; 21.2; 21.0; 29.5
Wollastonite (mol%):3.2; 7.7; 23.6; 32.1
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):24.3
Type spec location:UWB
Main mass:B. Hoefnagels
Comments:Work name BH042; submitted by A. Irving
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)
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° 9' 58"N, 14° 30' 25"W)

Statistics:
     This is 1 of 50 approved meteorites from Rio de Oro, Western Sahara
     This is 1 of 280 approved meteorites from Western Sahara (plus 20 unapproved names)
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