09186 - MARTIAN Black Beauty Rabt Sbayta 012 Meteorite 0.29 g Polymict Breccia Thin Section with Fusion Crust

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09186 - MARTIAN Black Beauty Rabt Sbayta 012 Meteorite 0.29 g Polymict Breccia Thin Section with Fusion Crust

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Species

MARTIAN Black Beauty Rabt Sbayta 012 Meteorite Polymict Breccia

Age

Location

Latitude: 24°4.2917'N Longitude: 14°46.1147'W, Rio de Oro, Western Sahara, Northwest Africa

Formation

Martian meteorite (Polymict Breccia)

Size

15.6 mm • in

Weight

0.29 g • oz

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Description

Beautiful and authentic example of 0.29 g of this RARE type of MARTIAN Polymict Breccia METEORITE named as Rabt Sbayta 012. Beautiful thin section with black tiny fusion crust.

SPECIMEN PROVIDED BY THE ORIGINAL CLASSIFIER D. Sheikh, FSU

The authenticity of this specimen is guaranteed by the geologist Juan Avilés Poblador, member of International Meteorite Collectors Association (IMCA 5681).

Rabt Sbayta 012

Basic information

Name: Rabt Sbayta 012
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: 11.1 g

Classification
history:

Recommended:

Martian (polymict breccia) [explanation]

This is 1 of 17 approved meteorites classified as Martian (polymict breccia). [show all]
Search for other: Martian meteorites

Comments:

Approved 19 May 2019

Writeup

Writeup from MB 108:

Rabt Sbayta 012 24°4.2917’N, 14°46.1147’W

Rio de Oro, Western Sahara

Find: 2016

Classification: Martian meteorite (polymict breccia)

History: Found by Zaid Oualguirah and his group in 2016 near Bir Anzarane. Purchased by George Penneff in 2017 from Daoud Wabich in Zagora, Morocco.

Physical characteristics: Three stones, black fusion crust. A slice of the interior reveals a dark-gray surface containing light and dark clasts.

Petrography: (D. Sheikh, FSU) Polymict breccia composed of light and dark lithic clasts and mineral fragments set in a fine-grained matrix. Mineral compositions and textures throughout the specimen are highly variable.Mineral phases identified include orthopyroxene, pigeonite, augite, plagioclase, apatite, and magnetite.

Geochemistry: Orthopyroxene: Fs_26.6±5.5Wo_2.8±0.6(Fs_21.3-38.2Wo_1.9-4.0, N=11, Fe/Mn=43.4±6.5); Pigeonite: Fs_34.2±7.9Wo_9.0±0.1(Fs_28.6-39.8Wo_8.9-9.1, N=2, Fe/Mn=46.2±7.6); Augite: Fs_23.9±8.0Wo_38.5±3.7(Fs_18.4-33.1Wo_36.1-42.8, N=3, Fe/Mn=47.4±9.4); Plagioclase: An_38.9±8.1Ab_58.8±7.0Or_2.3±1.3(An_20.9-46.7Ab_51.7-73.1Or_1.5-6.0, N=11). Oxygen isotopes (K. Ziegler, UNM): analyses of acid-washed subsamples by laser fluorination gave, respectively, δ¹⁷O 4.064, 3.943, 3.904; δ¹⁸O 6.525, 6.337, 6.332; Δ¹⁷O 0.619, 0.597, 0.561 per mil.

Classification: Martian (Polymict Breccia). Likely paired with NWA 7034 and pairings.

Specimens: 2.37 grams at UCLA; main mass with George Penneff.

Data from:
  MB108
  Table 0
  Line 0:

State/Prov/County:	Rio de Oro
Date:	2016
Latitude:	24°4.2917'N
Longitude:	14°46.1147'W
Mass (g):	11.1
Pieces:	3
Class:	Martian (polymict breccia)
Shock stage:	High
Weathering grade:	Low
Ferrosilite (mol%):	26.6; 34.2; 23.9
Wollastonite (mol%):	2.8; 9.0; 38.5
Classifier:	D. Sheikh, FSU
Type spec mass (g):	2.37
Type spec location:	UCLA
Main mass:	George Penneff
Finder:	Zaid Oualguirah
Comments:	Submitted by Daniel Sheikh

Plots:

O isotopes:

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