Meteoritical Bulletin: Entry for Sayh al Uhaymir 546

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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: 1032 g

Classification
history:

Meteoritical Bulletin:	MB 101	(2012)	H5
Recommended:			H5 [explanation]

This is 1 of 11567 approved meteorites (plus 23 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

help

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 Fa_18.6±0.3(n=83); Low-Ca Pyroxene Fs_18.7±0.8Wo_1.1±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:
  MB101
  Table 0
  Line 0:

State/Prov/County:	Al Wusta
Date:	January 2011
Latitude:	20°35'58.1"N
Longitude:	57°8'34.6"E
Mass (g):	1031.7
Pieces:	2
Class:	H5
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

Institutions
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)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 101, MAPS 50, 1661, September 2015

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Geography:

Oman

Oman

Coordinates:
Recommended::	(20° 35' 58"N, 57° 8' 35"E)

Statistics:
This is 1 of 1753 approved meteorites from Al Wusta, Oman (plus 81 unapproved names)
This is 1 of 3998 approved meteorites from Oman (plus 441 unapproved names)

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Revision
history:

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