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Rabt Sbayta 010
Basic information Name: Rabt Sbayta 010
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2018
Country: Western Sahara
Mass:help 6.1 g
Meteoritical Bulletin:  MB 107  (2018)  Martian (polymict breccia)
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 23 Sep 2018
Revised 16 Nov 2018: Updated class; see NWA 7034)
Writeup from MB 107:

Rabt Sbayta 010        24.135944, -14.763139

Rio de Oro, Western Sahara

Find: 2017 Dec 8

Classification: Martian meteorite (polymict breccia)

History: Found on 12/08/2017 by Zaid Oualguirah in the same area as NWA 7034. Purchased by Jean Redelsperger from Mohamed Elguirah in Zagora, Morocco, in 2018.

Physical characteristics: Three identical appearing pieces 4.8 g, 0.7 g, and 0.6 g, two pieces preserve patches of original glassy fusion crust, the remaining exterior surfaces have a shiny black luster. Saw cut reveals a breccia with numerous dark and light colored fragmental crystals and polycrystalline lithologies, scattered spherules and spherical objects, set in a dark gray, fine-grained groundmass, some opaques visible.

Petrography: (C. Agee, UNM) Microprobe examination of the polished deposit sample shows a polymict breccia with fragmental feldspar and pyroxene grains, set in a very fine-grained groundmass composed of feldspar, pyroxene, oxides, and phosphates.

Geochemistry: (C. Agee, UNM) Low-Ca pyroxene Fs36.0±10.0Wo5.0±2.3, Fe/Mn=36±4, n=10; high-Ca pyroxene Fs23.5±2.9Wo40.3±6.5, Fe/Mn=32±1, n=2; plagioclase Ab58.4±6.5An38.5±8.0Or3.2±1.6, n=12.

Classification: Martian (polymict breccia). Paired with NWA 7034 pairing group

Specimens: 1.3 g including a probe mount on deposit at UNM Jean Redelsperger holds the main mass.

Data from:
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Place of purchase:Zagora
Date:2017 Dec 8
Mass (g):6.1
Class:Martian (polyùict breccia)
Shock stage:high
Weathering grade:low
Ferrosilite (mol%):36.0±10.0, 23.5±2.9
Wollastonite (mol%):5.0±2.3, 40.3±6.5
Classifier:C. Agee, UNM
Type spec mass (g):1.3
Type spec location:UNM
Main mass:Jean Redelsperger
Comments:Submitted by C. Agee
   and collections
UNM: Institute of Meteoritics MSC03 2050 University of New Mexico Albuquerque NM 87131-1126 USA, United States; Website (institutional address; updated 12 Feb 2015)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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    (Caution, these are of unknown reliability)

Western Sahara
     Recommended::   (24° 8' 9"N, 14° 45' 47"W)

     This is 1 of 47 approved meteorites from Rio de Oro, Western Sahara
     This is 1 of 264 approved meteorites from Western Sahara (plus 19 unapproved names)
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