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Sayh al Uhaymir 290
Basic information Name: Sayh al Uhaymir 290
     This is an OFFICIAL meteorite name.
Abbreviation: SaU 290
Observed fall: No
Year found: 2004
Country: Oman
Mass:help 1796 g
Meteoritical Bulletin:  MB 92  (2007)  CH3
Recommended:  CH3    [explanation]

This is 1 of 28 approved meteorites classified as CH3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CH chondrites, CH-CB family, and Metal-rich meteorites
Comments: Approved 13 Jul 2005
Revised 25 Jul 2007: Changed from MB90 to 92
Writeup from MB 92:

Sayh al Uhaymir 290                     21°04'31.6" N, 57°08'49.3" E

Oman, Al Wusta

Found 2004 Feb. 13th and Nov. 6th

Carbonaceous chondrite (CH3)

History: Sixty-four fragments were discovered within a distance of ~ 10 m by Rainer and Claudia Bartoschewitz during a natural science expedition on a gravel plateau of Miocene fresh-water limestone of Middle Fars group about 35 km SSW of Ghaba Resthouse (Adam County).

Physical characteristics:  Sixty-four fragments weighing between 0.2 to 888 g amount to a total of 1.796 kg.

Petrography:  The meteorite is mostly composed of small chondrules (<20 μm) of various textural types, ~15% fine grained metal, few small "matrix lumps" and rare refractory inclusions.

Mineral composition and geochemistry: (R. Bartoschewitz, Bart., P. Appel and B. Mader, Kiel, M.I. Prudêncio, ITN,  U. Krähenbühl, Bern) Pyroxene (Fs3.99-5.16Wo3.01-1.80, Al2O3 = 1.90, Cr2O3 = 0.62 [wt%]), Ti-rich pyroxene (Fs2.88 Wo19.66, Al2O3 = 10.40, Cr2O3 = 1.27 [wt%]), olivine (Fa1.88-0.83, CaO = 0.43 - 0.27, Al2O3 = 0.27, Cr2O3 = 0.47 [all wt%]), sulfide (Ni = 0.4-21.7 wt%), kamacite (Ni = 3.7-8.0, Co = 0.35-0.56, Si = 0.02-0.15, Cr = 0.08-0.40 [all wt%]), tetrataenite (Ni = 59.2, Co = 1.45 [wt%]). Whole rock siderophile, chalcophile and lithophile element abundances similar to other CHs. Magnetic susceptibility = log χ = 5.2 x 10-9 m3/kg. Noble gas isotopes (J. Park and K. Nagao, UTokE, Japan, R. Okazaki, KyuU) high concentrations of solar noble gases. O isotopes (M. Kusakabe, OkaU) δ17O = 1.91‰, δ18O = 5.71‰.

Classification:  Carbonaceous chondrite (CH3) moderate weathering.

Type specimens: A total of 20.1 g are on deposit at UTokE. Bart holds 1500 g and one thin section.

Data from:
  Table 6
  Line 8:
State/Prov/County:Al Wusta, Oman
Mass (g):1796
Type spec mass (g):20.1
Plots: O isotopes:  
   and collections
Kiel: Geologisches und Mineralogisches Museum, Institut für Geowissenschaften, Christian-Albrechts-Universität Kiel, Ludewig-Mayn-Str. 10, D-24118 Kiel, Germany, Germany (institutional address; updated 13 Sep 2013)
KyuU: Department of Earth and Planetary Science, Kyushu University Hakozaki, Higashi-ku, Fukuoka-shi 812- 8581, Japan (institutional address)
Bart: Bartoschewitz Meteorite Laboratory, Weiland 37, D-38518 Gifhorn, Germany; Website (private address; updated 30 Nov 2019)
Bern: University of Bern, University of Bern, Hochschulstrasse 4, CH-3012 Bern, Switzerland (institutional address)
ITN: Instituto Tecnológico e Nuclear, Estrada Nacional 10, 2686-953 Sacavém, Portugal (institutional address)
OkaU: Institute for Study of the Earth's Interior, Okayama University, Misasa Tottori 682-0193, Japan (institutional address)
UTokE: Earthquake Research Institute, University of Tokyo, Yayoi, Bunkyo-ku, Tokyo 11300-32, Japan (institutional address)
References: Published in Meteoritical Bulletin, no. 92, MAPS 42, 1647-1694 (2007)
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     Recommended::   (21° 4' 32"N, 57° 8' 49"E)

     This is 1 of 1759 approved meteorites from Al Wusta, Oman (plus 75 unapproved names)
     This is 1 of 4006 approved meteorites from Oman (plus 436 unapproved names)
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