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Sueilila 002
Basic information Name: Sueilila 002
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2014
Country: Western Sahara
Mass:help 3.69 kg
Meteoritical Bulletin:  MB 107  (2018)  Martian (shergottite)
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 322 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 7 Apr 2018
Writeup from MB 107:

Sueilila 002        24.732°N, 14.319°W

Rio de Oro, Western Sahara

Find: 2014 May 25

Classification: Martian meteorite (Shergottite)

History: (H. Chennaoui-Aoudjehane, FSAC) A party of four experienced meteorite hunters (A. Bouferra, Z. Balli, A. Oubedda and M. Ouicha) had camped at a place on their way back from Sbayta to Boujdour in southern Morocco on May 24, 2014, and the next day searched there for meteorites. Mr. Zaid Balli found a 1467 g, mostly buried rock which appeared different from the background desert soil, but without fusion crust and somewhat weathered. Although following its excavation this specimen did not seem promising, they decided to search for more material anyway, and found several identical pieces within a few meters of the first stone. A sample sent to UWS was soon confirmed to be a shergottite. On October 17, 2014 Dr. H. Chennaoui-Aoudjehane (accompanied by M. Aoudjehane, A. Bouragaa and A. Bouferra) traveled to the find site to collect information on the coordinates. Independently, other metorite hunters visited the site during June and July, and found additional pieces. One 560 g stone was purchased by Darryl Pitt in August 2014 and a 124 g stone was purchased by Steve Arnold in October 2014.

Physical characteristics: (A. Irving, UWS and A. Bouragaa) The buried portion of the largest (1467 g) stone was coated by pale brown clay, but the small area that was exposed is brown with dark phenocrysts visible. The cut interiors of both the 560 g and 124 g stones have a mottled brown appearance with larger, deep brown phenocrysts. All stones have a weathering rind up to several millimeters thick.

Petrography: (A. Irving and S. Kuehner, UWS) Porphyritic texture. Euhedral to subhedral, zoned olivine phenocrysts (up to 2.2 mm) are set in a finer grained groundmass composed predominantly of zoned, prismatically-twinned pyroxene and maskelynite with accessory olivine, chromite, ilmenite, Mg-bearing merrillite and pyrrhotite. Olivine phenocrysts contain numerous tiny inclusions of chromite, as well as sparse melt inclusions (now composed of low-Ca pyroxene, silica polymorph, plagioclase, merrillite, pentlandite and glass) surrounded by radial cracks. Cores of olivine grains are orange in thin section, whereas olivine rims, groundmass olivine and groundmass pyroxene are all pale tan in color. Terrestrial weathering effects include orange staining of groundmass opaque minerals and minor thin calcite veinlets.

Geochemistry: Olivine phenocrysts (cores Fa19.1-20.4, N = 3, rims Fa36.9-39.5, N = 2, FeO/MnO = 48-55), groundmass olivine (Fa47.2-48.7, FeO/MnO = 53-57, N = 2), orthopyroxene cores (Fs16.5-21.7Wo2.2-3.5, FeO/MnO = 25-27, N = 2), pigeonite (Fs32.2-34.1Wo11.0-11.5, FeO/MnO = 36, N = 3), plagioclase (An60.9-62.1Or1.4-1.9, N = 3).

Classification: Martian (shergottite, olivine-phyric).

Specimens: 21 g including one polished thin section and one polished slice at UWB; 20 g at FSAC. The remaining material is held by DPitt, Mr. S. Arnold, Mr. A. Bouragaa and Mr. A. Bouferra.

Data from:
  Table 0
  Line 0:
State/Prov/County:Rio de Oro
Origin or pseudonym:Jrifiya
Date:2014 May 25
Mass (g):3694
Class:Martian (shergottite)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):19.1-48.7
Ferrosilite (mol%):16.5-21.7; 32.2-34.1
Wollastonite (mol%):2.2-3.5; 11.0-11.5
Classifier:A. Irving and S. Kuehner, UWS
Type spec mass (g):41
Type spec location:21 g UWB, 20 g FSAC
Main mass:D. Pitt; S. Arnold; A. Bouragaa; A. Bouferra
Finder:Zaid Balli and others
Comments:Submitted by A. Irving
   and collections
FSAC: Universite Hassan II Casablanca, Faculte des Sciences Ain Chock, Departement de Géologie, BP 5366 Maârif, Casablanca, Morocco (institutional address; updated 9 Jan 2013)
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)
DPitt: Darryl Pitt, 225 West 83rd Street, New York, NY 10024, United States; Website (private address)
References: Published in Meteoritical Bulletin, no. 107, MAPS 55, 460-462
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Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Russ Opdahl   

Western Sahara
     Recommended::   (24° 43' 55"N, 14° 19' 8"W)

     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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Synonymshelp: Jrifiya (Alt name in use)

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