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Gebel Kamil
Basic information Name: Gebel Kamil
     This is an OFFICIAL meteorite name.
Abbreviation: There is no official abbreviation for this meteorite.
Observed fall: No
Year found: 2009
Country: Egypt
Mass:help 1.6 t
Meteoritical Bulletin:  MB 98  (2010)  Iron, ungrouped
Recommended:  Iron, ungrouped    [explanation]

This is 1 of 152 approved meteorites (plus 1 unapproved name) classified as Iron, ungrouped.   [show all]
Search for other: Iron meteorites, Metal-rich meteorites, and Ungrouped irons
Comments: Approved 12 Jul 2010
Writeup from MB 98:

Gebel Kamil        22°01'06"N,  26°05'16"E

East Uweinat Desert, Egypt

Found: 19 February 2009

Classification: Iron meteorite (ungrouped)

History: A total of about 1600 kg of iron meteorite shrapnel (thousands of pieces), ranging in mass from < 1 to 35,000 g, plus a single 83 kg individual completely covered with well developed regmaglypts, was found in and around the 45 m diameter Kamil impact crater by an Italian-Egyptian geophysical team in February 2009 and February 2010. Approximately 800 kg of the total mass observed in the field (the regmaglypted individual inclusive) was recovered. The Kamil crater was identified by V. De Michele, former curator of the Natural History Museum in Milan, Italy. The geophysical survey was carried out within the framework of the "2009 Italian-Egyptian Year of Science and Technology".

Physical characteristics: A 634 g type specimen, measuring 88 × 70 × 55 mm, is flattened and jagged shrapnel with a rough, dark-brown external surface. The surface originally sitting in the desert soil shows some oxy-hydroxides due to terrestrial weathering.

Petrography: (M. D’Orazio, DST-PI; Luigi Folco, MNA-SI) Etched sections show an ataxitic structure interrupted on a cm-scale by crystals of schreibersite, troilite and daubreelite enveloped in swathing kamacite. Kamacite spindles (20 ± 5 μm wide) nucleated on tiny schreibersite crystals. The spindles form small aligned clusters and are rimmed by taenite. The matrix is a duplex plessite made of approximately the same proportion of kamacite and taenite lamellae (1-5 μm in thickness) arranged in a micro-Widmanstätten pattern. Many sections show, particularly close to the external surface, shear dislocations offsetting the plessitic matrix and the crystals of the accessory phases by several millimeters.

Geochemistry: Composition of the metal (ICP-MS; D’Orazio and Folco, 2003) is Co = 0.75, Ni = 19.8 (both in wt%), Cu = 464, Ga = 49, Ge = 121, As = 15.6, Mo = 9.1, Ru = 2.11, Rh = 0.75, Pd = 4.8, Sn = 2.49, Sb = 0.26, W = 0.66, Re = 0.04, Ir = 0.39, Pt = 3.5, Au = 1.57 (all in ppm).

Classification: (M. D’Orazio, DST-PI; Luigi Folco, MNA-SI) Iron meteorite (ungrouped), Ni-rich ataxite, extensive shear deformation and low weathering.

Specimens: Type specimens of approximately 15 kg and one section at MNA-SI; approximately 5 kg at DST-PI. Main mass of the recovered specimens at Egyptian Geological Museum (Mineral Resources Authority), Cairo, Egypt.

  • D'Orazio M. and Folco L. (2003) Chemical analysis of iron meteorites by inductively coupled plasma-mass spectrometry. Geostand. Newslett. 27, 215-225. (link)
Data from:
  Table 1
  Line 4:
State/Prov/County:Al Wadi al Jadid, East Uweinat Desert
Date:19 Feb 2009
Mass (g):1600000
Class:Iron, ungrouped
Classifier:M. D’Orazio, Luigi Folco
Type spec mass (g):1500
Type spec location:MNA-SI
Main mass:EGM
Finder:V. De Michele
Comments:Submitted by Folco
   and collections
DST-PI: Dipartimento di Scienze della Terra, Università di Pisa, Via S. Maria 53, 56126 Pisa, Italy (institutional address; updated 17 Oct 2011)
MNA-SI: Museo Nazionale dell'Antartide, Università di Siena, Via Laterina 8, I-53100 Siena, Italy; Website (institutional address; updated 13 Dec 2011)
EGM: Egyptian Geological Museum, Atar El Nabi, Miser El Kadima, P.O. Box 11521, Cairo, Egypt (institutional address)
References: Published in Meteoritical Bulletin, no. 98, MAPS 45, 1530-1551 (2010)
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     Recommended::   (22° 1' 6"N, 26° 5' 16"E)

     This is 1 of 38 approved meteorites from Al Wadi al Jadid, Egypt (plus 1 impact crater)
     This is 1 of 129 approved meteorites from Egypt (plus 2 unapproved names) (plus 1 impact crater)
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