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Sayh al Uhaymir 402
Basic information Name: Sayh al Uhaymir 402
     This is an OFFICIAL meteorite name.
Abbreviation: SaU 402
Observed fall: No
Year found: 2004
Country: Oman
Mass:help 78 g
Meteoritical Bulletin:  MB 90  (2006)  Enst achon-ung
Recommended:  Enst achon-ung    [explanation]

This is 1 of 5 approved meteorites classified as Enst achon-ung.   [show all]
Search for other: Achondrites, Enstatite achondrites, Enstatite-rich meteorites, and Ungrouped achondrites
Comments: Approved 9 Sep 2006
Writeup from MB 90:

Sayh al Uhaymir 402        21°4′37′′N, 57°16′11′′E


Find: 2004

Achondrite (ungrouped enstatite)

History: A meteorite collector recovered a single stone was found in the desert of Oman.

Physical Characteristics: The stone, weighing 78 g, has a brown surface color and is free of fusion crust.

Petrography: (D. D. Badjukov, Vernad; F. Brandstätter, NHMV) The meteorite consists of <2 millimeter-size silicate clasts embedded in an iron oxide groundmass; the silicate clasts are composed of fine (0.002–0.5 mm, average 0.05 mm) fragments of enstatite crystals in a matrix consisting of aggregates of a few millimeters wide plagioclase laths in a transparent glass. Fine droplets and blebs of metal, niningerite, and troilite are dispersed in the glass. Silicate mode (vol%) for enstatite and matrix is 63% and 37%, respectively. Mineral chemistry: Enstatite (Fs1Wo1), glass (SiO2 = 70–75, Al2O3 = 17–18, MgO = 4–5, Na2O = 5–6, FeO and K2O < 1 [all wt%]), metal (Si = 2 wt%), niningerite (Ca = 1.3, Cr = 1.8 [both wt%]); troilite contains Cr, Ti, and Mn.

Classification: Achondrite (ungrouped enstatite). The texture and mineralogy imply that it could be an impact melt rock; relic fragments of enstatite show strong mosaicism and planar features. The meteorite is permeated by iron oxides (45 vol%) but the silicate clasts are unaltered.

Specimens: A 17.0 g type specimen and one thin section are on deposit at Vernad. An anonymous collector holds the main mass.

Data from:
  Table 5
  Line 66:
Date:26 Jun 2005
   and collections
NHMV: Naturhistorisches Museum, Burgring 7, 1010 Wien, Austria, Austria; Website (institutional address; updated 18 Jan 2019)
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
References: Published in Meteoritical Bulletin, no. 90, MAPS 41, 1383-1418 (2006)
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Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Woreczko Jan & Wadi   

     Recommended::   (21° 4' 37"N, 57° 16' 11"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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