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Oued Sfayat
Basic information Name: Oued Sfayat
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: Yes, confirmed fall
Year fell: 2019
Country: Algeria
Mass:help 8 kg
Classification
  history:
Recommended:  H5    [explanation]

This is 1 of 9692 approved meteorites (plus 16 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 26 Sep 2019
Writeuphelp
Writeup from MB 108:

Oued Sfayat        26°42.433’N, 6°9.766’W

Tindouf, Algeria

Confirmed fall: 16 May 2019

Classification: Ordinary chondrite (H5)

History: On May 16, 2019, a meteor was seen by a group of shepherds at 9:00 pm (local time) at the Dakhla camp in Tindouf, Algeria. The meteor came in at a low angle (about 30 °) from the west and was moving east at a relatively low velocity. A shockwave was felt as the meteor exploded, and a booming sound was heard near the camp. Hibballah, one of the shepherds present at the camp, went in search alone the following morning (May 17, 2019) for pieces of potential meteorites that may have fallen, by following the direction of the observed meteor trail and booming sound. That same day, Hibbballah recovered the first fragment, an 80 g freshly crusted individual in the area of Oued Sfayat, a river valley about 70 km to the east of the Dakhla camp. After finding this piece, Hibballah returned to the camp to tell his father Oueld Ennajm the location where he had found the first piece. Several days later, Oueld Ennajm and a some shepherds traveled to Oued Sfayat and over the next few of months went searching for more fragments. After searching between the end of May through the middle July in a 1-2 km area at Oued Sfayat, about 8 kg of freshly crusted individual fragments (mostly small stones of varying sizes between 10-60 g, with the exception of a few larger-sized individuals ~600 g) were recovered by Oueld Ennajm and the shepherds. Some of these recovered fragments were then later sold to Ahmed Chacha and Otman Sidi Ahmed. Later on, some of the purchased fragments (2.6 kg) were subsequently purchased by Youssef Bennani, who later sent some small stones in for analysis.

Physical characteristics: Stones are covered by a black, fresh fusion crust. A cut of the interior reveals a light-gray surface.

Petrography: (Daniel Sheikh, FSU) Chondrules nearly absent(400 μm, N=1). Recrystallized matrix with plagioclase (10 µm). FeNi metal and troilite present.

Geochemistry: Olivine, Fa 18.1±0.3 (N=35); orthopyroxene, Fs16.8±0.5Wo1.1±0.1 (N=11).

Classification: Ordinary Chondrite (H5)

Specimens: 23.4 grams at UCLA; main mass with Youssef Bennani.

Data from:
  MB108
  Table 0
  Line 0:
State/Prov/County:Tindouf
Date:16 May 2019
Latitude:26°42.433'N
Longitude:6°9.766'W
Mass (g):8 kg
Pieces:many
Class:H5
Shock stage:S4
Weathering grade:W0
Fayalite (mol%):18.1±0.3 (N=35)
Ferrosilite (mol%):16.8±0.5 (N=11)
Wollastonite (mol%):1.1±0.1 (N=11)
Classifier:D. Sheikh, FSU
Type spec mass (g):24.3
Type spec location:UCLA
Main mass:Youssef Bennani
Finder:Hibballah
Comments:Submitted by Daniel Sheikh
Institutions
   and collections
UCLA: Institute of Geophysics and Planetary Physics, University of California, Los Angeles, CA 90095-1567, United States (institutional address; updated 17 Oct 2011)
FSU: Department of Geological Sciences, Florida State University, Tallahassee FL 32306-4100, United States (institutional address; updated 16 Dec 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 108, in preparation (2019)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Achim Sven Faforke   
Denis gourgues      
Woreczko Jan & Wadi            
Public domain photographs:
Daniel Sheikh         
Geography:

Algeria
Coordinates:
     Recommended::   (26° 42' 26"N, 6° 9' 46"W)

Statistics:
     This is 1 of 32 approved meteorites from Tindouf, Algeria (plus 1 impact crater)
     This is 1 of 980 approved meteorites from Algeria (plus 26 unapproved names) (plus 4 impact craters)
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