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Sayh al Uhaymir 587
Basic information Name: Sayh al Uhaymir 587
     This is an OFFICIAL meteorite name.
Abbreviation: SaU 587
Observed fall: No
Year found: 2014
Country: Oman
Mass:help 4.7 g
Classification
  history:
Meteoritical Bulletin:  MB 104  (2015)  Martian (shergottite)
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 300 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 6 Jan 2015
Writeuphelp
Writeup from MB 104:

Sayh al Uhaymir 587 (SaU 587)        21°00.764’N, 57°19.238’E

Al Wusta, Oman

Found: 2014 Mar 2

Classification: Martian meteorite (Shergottite)

History: A small greenish-gray individual with some fusion crust was found during a field trip in the Oman desert close to the Sayh al Uhaymir 005/008 strewn field.

Petrography: The meteorite displays a porphyritic texture with mm-sized olivine phenocrysts set into in a fine-grained basaltic groundmass of dominantly pigeonite and maskelynite; minor phases include phosphates, sulfides, Ti-rich chromite and chromite. Intense fracturing, conversion of plagioclase to maskelynite, strong mosaicism of olivine and abundant melt veins and melt pockets attest to a high degree of shock metamorphism. The meteorite is moderately weathered with only a few of the larger cracks partially filled with calcite.

Geochemistry: Olivine, Fa34±0.5 (Fa33-35.2, n=15, FeO/MnO=50-61; pigeonite, Fs25.2±2Wo9.2±1.6 (Fs22.4-28.9Wo7-14.4, n=24, FeO/MnO=29-35); maskelynite, An63.4±1.8Or0.5±0.1 (An60.4-65.9Or0.4-0.6, n=15); chromite contains up to 17 wt% TiO2

Classification: Martian (olivine-phyric shergottite)

Specimens: Likely paired with SaU 005/008.

Data from:
  MB104
  Table 0
  Line 0:
State/Prov/County:Al Wusta
Date:2014 Mar 2
Latitude:21°00.764'N
Longitude:57°19.238'E
Mass (g):4.7
Pieces:1
Class:Martian (shergottite)
Shock stage:high
Weathering grade:moderate
Fayalite (mol%):34
Ferrosilite (mol%):25.2
Wollastonite (mol%):9.2
Classifier:A. Greshake, MNB
Type spec mass (g):1.4
Type spec location:MNB
Main mass:anonymous
Comments:Submitted by Ansgar Greshake
Institutions
   and collections		 MNB: Museum für Naturkunde, Invalidenstraße 43, D-10115 Berlin, Germany (institutional address; updated 24 Dec 2011)
Catalogs:
References: Published in Meteoritical Bulletin, no. 104, MAPS 52, 2284, Octover 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12930/full
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Photos:
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    (Caution, these are of unknown reliability)
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Geography:

Oman
Coordinates:
     Recommended::   (21° 0' 46"N, 57° 19' 14"E)

Statistics:
     This is 1 of 1757 approved meteorites from Al Wusta, Oman (plus 75 unapproved names)
     This is 1 of 4003 approved meteorites from Oman (plus 436 unapproved names)
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