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Sayh al Uhaymir 546
Basic information Name: Sayh al Uhaymir 546
     This is an OFFICIAL meteorite name.
Abbreviation: SaU 546
Observed fall: No
Year found: 2011
Country: Oman
Mass:help 1032 g
Meteoritical Bulletin:  MB 101  (2012)  H5
Recommended:  H5    [explanation]

This is 1 of 10945 approved meteorites (plus 20 unapproved names) classified as H5.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 15 Sep 2012
Writeup from MB 101:

Sayh al Uhaymir 546 (SaU 546)        20°35’58.1"N, 57°8’34.6"E

Al Wusta, Oman

Found: January 2011

Classification: Ordinary chondrite (H5)

Petrography: (P. Strickland, UAb) Approximately 80 vol% chondrules, 10 vol% matrix, and 10 vol% metals/opaque minerals. Chondrules have an average diameter of 0.4 mm and display cryptocrystalline, radial pyroxene, and porphyritic olivine-pyroxene textures. Barred olivine chondrules are rare. Some chondrules contain indistinct olivine grains that have a distinct "dusty" texture. Most olivine and pyroxene grains have irregular fractures, planar fractures, undulatory extinction, and clinoenstatite lamellae on low-Ca pyroxene indicating weak-moderate shock (S3). Oxidized metal rims, fractures, and frequent rusty-staining indicates weak weathering (W1).

Geochemistry: (C. Herd and P. Strickland, UAb) Olivine Fa18.6±0.3 (n=83); Low-Ca Pyroxene Fs18.7±0.8Wo1.1±0.2 (n=16).

Classification: Ordinary chondrite (H5). Classified based on average and standard deviation of Fa and Fs content in olivine and low-Ca pyroxene respectively.

Specimens: 56.0 g type specimen, including polished thin section, are on deposit at UAb. Main mass at SQU.

Data from:
  Table 0
  Line 0:
State/Prov/County:Al Wusta
Date:January 2011
Mass (g):1031.7
Shock stage:S3
Weathering grade:W1
Fayalite (mol%):18.6±0.3 (n=83)
Ferrosilite (mol%):16.7±0.8 (n=16)
Wollastonite (mol%):1.1±0.2
Classifier:C. Herd and P. Strickland, UAb
Type spec mass (g):56.0
Type spec location:UAb
Main mass:SQU
Comments:Field number O-4; submitted by C. Herd
   and collections
UAb: 1-26 Earth Sciences Building, University of Alberta, Edmonton, AB, T6G 2E3, Canada, Canada; Website (institutional address; updated 17 Oct 2011)
SQU: Sultan Qaboos University, College of Science, Earth Sciences Department, P.O. Box 36 Code 123 Al­Khoud, Oman (institutional address; updated 5 Oct 2014)
References: Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015
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     Recommended::   (20° 35' 58"N, 57° 8' 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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