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Sayh al Uhaymir 598
Basic information Name: Sayh al Uhaymir 598
     This is an OFFICIAL meteorite name.
Abbreviation: SaU 598
Observed fall: No
Year found: 2014
Country: Oman
Mass:help 943 g
Meteoritical Bulletin:  MB 106  (2018)  H4-an
Recommended:  H4-an    [explanation]

This is 1 of 23 approved meteorites classified as H4-an.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 4 Mar 2017
Writeup from MB 106:

Sayh al Uhaymir 598 (SaU 598)        20°21.454’N, 56°35.587’E

Al Wusta, Oman

Find: 14 Feb 2014

Classification: Ordinary chondrite (H4, anomalous)

History: Found by Edwin Gnos, Beda Hofmann, Thomas Burri, and Marianna Mészáros during a search for meteorites on February 14, 2014.

Physical characteristics: Wind-ablated dark brown individual of 939 g plus one fragment of 3.8 g.

Petrography: (B. Hofmann, NMBE and E. Gnos, MHNGE) Mean apparent chondrule size 0.40±0.21 mm (n=163). Metal and troilite are nearly completely oxidized.

Geochemistry: (N. Greber, Bern) Olivine compositions are Fa14.0±0.2 (n=17). Orthopyroxene compositions (n=5) are Fs13.4±1.6Wo0.5±0.2). Fa by XRD 13.4.

Classification: Based on Fe-contents in silicates below Fa16/Fs14.5 this meteorite is classified as H4-an. Weakly shocked (S2), weathering grade W4.

Specimens: All at NMBE

Data from:
  Table 0
  Line 0:
State/Prov/County:Al Wusta
Origin or pseudonym:Desert plain
Date:14 Feb 2014
Mass (g):942.8
Shock stage:S2
Weathering grade:W4
Fayalite (mol%):14.0±0.2 (N=17)
Ferrosilite (mol%):13.4±1.6 (N=5)
Wollastonite (mol%):0.5±0.2 (N=5)
Classifier:B. Hofmann, N. Greber, E. Gnos, NMBE
Type spec mass (g):942.8
Type spec location:NMBE
Main mass:NMBE
Finder:Thomas Burri, Edwin Gnos, Beda Hofmann, Marianna Mészáros
Comments:Submitted by Beda Hofmann
   and collections
NMBE: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
MHNGE: Muséum d’histoire naturelle, Route de Malagnou 1, CH-1211 Genève 6 , Switzerland (institutional address; updated 27 Oct 2011)
Bern: University of Bern, University of Bern, Hochschulstrasse 4, CH-3012 Bern, Switzerland (institutional address)
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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     Recommended::   (20° 21' 27"N, 56° 35' 35"E)

     This is 1 of 1756 approved meteorites from Al Wusta, Oman (plus 75 unapproved names)
     This is 1 of 4002 approved meteorites from Oman (plus 434 unapproved names)
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