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Khawr al Fazra 017
Basic information Name: Khawr al Fazra 017
     This is an official name for a relict meteorite. Relict meteorites are composed mostly of terrestrial minerals, but are thought to have once been meteorites. Note: evidence that this was once a meteorite may not have been critically evaluated.
Abbreviation: KaF 017
Observed fall: No
Year found: 2013
Country: Saudi Arabia
Mass:help 1.71 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  Relict ureilite
Recommended:  Relict ureilite    [explanation]

Comments: Entered 28 Jan 2014
Writeuphelp
Writeup from MB 103:

Khawr al Fazra 017 (KaF 017)        19°26.640’N, 50°46.957’E

Ash Sharqiyah, Saudi Arabia

Found: 15 Feb 2013

Classification: Relict ureilite

History: Found by Edwin Gnos, Beda Hofmann, Ayman Majoub search for meteorites on small patch of desert soil between dunes on Feb. 15, 2013.

Physical characteristics: Sand-nodule of 1.71 g cemented by dark brown, magnetic, Ni-rich Fe-(hydr)oxides, containing millimeter-sized remnants of weathered meteorite.

Petrography: Polished thin section shows terrestrial quartz sand grains cemented by maghemite and Fe-hydroxides. Inclusions up to 500 μm in size consist of pyroxene and feldspar.

Geochemistry: (N. Greber, Bern) Ca-poor pyroxene: Fs7.6-12.2Wo0.6-6.5, median Fs10.4Wo1.9, Cr2O3 0.65 wt% (n=9). The sand-rich weathering rind has the following composition (XRF): Fe 23.1%, Ni 1.2%.

Classification: Based on the presence of Ni-rich weathering products and remnants of pyroxene, this is a highly weathered meteorite, pyroxene compositions indicate possible pairing with nearby found ureilite Khawr al Fazra 018.

Specimens: All material at MHNGE.

Data from:
  MB103
  Table 0
  Line 0:
State/Prov/County:Ash Sharqiyah
Origin or pseudonym:fossil lake bed
Date:15 Feb 2013
Latitude:19°26.640'N
Longitude:50°46.957'E
Mass (g):1.709
Pieces:1
Class:Relict ureilite
Weathering grade:W6
Ferrosilite (mol%):10.4
Wollastonite (mol%):1.9
Classifier:B. Hofmann, E. Gnos, E. Greber
Type spec mass (g):1.71
Type spec location:MHNGE
Main mass:SGS
Finder:Edwin Gnos, Beda Hofmann, Ayman Majoub
Comments:Submitted by Beda Hofmann
Institutions
   and collections
MHNGE: Muséum d’histoire naturelle, Route de Malagnou 1, CH-1211 Genève 6 , Switzerland (institutional address; updated 27 Oct 2011)
Bern: University of Bern, University of Bern, Hochschulstrasse 4, CH-3012 Bern, Switzerland (institutional address)
SGS: Saudi Geological Survey, Jeddah, Saudi Arabia (institutional address; updated 11 Feb 2010)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography:

Saudi Arabia
Coordinates:
     Recommended::   (19° 26' 38"N, 50° 46' 57"E)
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