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Sayh al Uhaymir 525
Basic information Name: Sayh al Uhaymir 525
     This is an OFFICIAL meteorite name.
Abbreviation: SaU 525
Observed fall: No
Year found: 2006
Country: Oman
Mass:help 212 g
Classification
  history:
Meteoritical Bulletin:  MB 100  (2012)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 573 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 1 Jul 2011
Writeuphelp
Writeup from MB 100:

Sayh al Uhaymir 525 (SaU 525)        20°57.87’N, 56°43.22’E

Al Wusta, Oman

Found: 24 Nov 2006

Classification: Ureilite

History: One incomplete individual was recovered in the Oman desert by an anonymous collector.

Physical characteristics: Dark-brown color, 212 g. 30% fusion crusted.

Petrography: (C.A. Lorenz, Vernad) Porphyritic texture consisting of 12 vol% rounded olivines to 5 mm, embedded in a dark matrix. Matrix consists of small olivine and pyroxene grains and interstitial glass. Rare phases are metal Fe, troilite, and diamond.

Geochemistry: (N.N. Kononkova, Vernad, EMP) Olivine has reverse zoning from Fa18 (0.2-0.3 CaO, 0.4-0.7 Cr2O3, Fe/Mn=30) to Fa11 (Fe/Mn=18). Matrix: pyroxene is En73.4Wo25.5 (Fe/Mn=1), olivine is Fa0.7 (Fe/Mn=1), interstitial glass is An66Ab28Or6. Oxygen isotopic composition (I. Franchi, R. Greenwood, OU, laser fluorination) is: δ17O 3.687; δ18O 7.821; Δ17O -0.416 (per mil).

Specimens: A total of 32.15 g sample and one thin polished section are on deposit at Vernad. The anonymous collector holds the main mass.

Data from:
  MB100
  Table 1
  Line 1876:
State/Prov/County:Al Wusta
Date:24 Nov 2006
Latitude:20°57.87'N
Longitude:56°43.22'E
Mass (g):212
Pieces:1
Class:Ureilite
Fayalite (mol%):18
Classifier:C. A. Lorenz, Vernad
Type spec mass (g):32.15
Type spec location:Vernad
Main mass:Vernad
Comments:Submitted by C. A. Lorenz
Plots: O isotopes:  
Institutions
   and collections
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
Catalogs:
References: Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Photos:
CreditPhotos
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Woreczko Jan & Wadi   
Geography:

Oman
Coordinates:
     Recommended::   (20° 57' 52"N, 56° 43' 13"E)

Statistics:
     This is 1 of 1753 approved meteorites from Al Wusta, Oman (plus 75 unapproved names)
     This is 1 of 3984 approved meteorites from Oman (plus 447 unapproved names)
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