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Ramlat Fasad 029
Basic information Name: Ramlat Fasad 029
     This is an OFFICIAL meteorite name.
Abbreviation: RF 029
Observed fall: No
Year found: 2015
Country: Oman
Mass:help 12 g
Classification
  history:
Meteoritical Bulletin:  MB 106  (2018)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 594 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 21 May 2017
Writeuphelp
Writeup from MB 106:

Ramlat Fasad 029        18°44.318’N, 53°13.547’E

Zufar, Oman

Find: 05 Feb 2015

Classification: Ureilite

History: A single stone was found during a search for meteorites.

Physical characteristics: Brownish, wind-ablated stone, no fusion crust preserved.

Petrography: (B. Hofmann, NMBE, Å. Rosén, Bern, E. Gnos, MHNGE): The stone consists of dominant olivine and minor pigeonite (~3:1) with rare augite inclusions. Both olivine and pyroxene are, with few exceptions, recrystallized, showing a granular texture with mosaicism, having an average grain size of 50 μm (N = 160). The shape of primary silicate grains is discernable. Recrystallized primary olivine grains preserve reduced Fe-poor rims with minute inclusions of Fe metal, mostly oxidized due to weathering. Larger metal at grain boundaries is completely weathered. Carbon platelets (to 1 mm length) consist of dominant diamond and some graphite.

Geochemistry: (Å. Rosén, Bern) Non-reduced olivines are Fa23.3±2.2 , Cr2O3 0.64±0.13 wt%, (N = 81) remnant reduced areas are Fa9.7±3.2 (N = 11). Pigeonite has Fs11.7±1.4Wo9.2±2.5, Cr2O3 1.32±0.10 wt% (N = 41).

Classification: Based on texture and mineralogy this is a strongly shocked and annealed, unbrecciated ureilite. Strongly weathered.

Specimens: All at NMBE

Data from:
  MB106
  Table 0
  Line 0:
State/Prov/County:Zufar
Origin or pseudonym:Desert plain
Date:05 Feb 2015
Latitude:18°44.318'N
Longitude:53°13.547'E
Mass (g):11.97
Pieces:2
Class:Ureilite
Fayalite (mol%):23.3±2.2 (N = 81)
Ferrosilite (mol%):9.7±3.2 (N = 11)
Wollastonite (mol%):9.2±2.5 (N = 41)
Classifier:B. Hofmann, NMBE, Å. Rosén, E. Gnos, MHNGE
Type spec mass (g):11.97
Type spec location:NMBE
Main mass:NMBE
Finder:Saif Al-Hamemi, Martin Bucher, Thomas Burri, Urs Eggenberger, Edwin Gnos, Beda Hofmann, Åke Rosén
Comments:Submitted by Beda Hofmann
Institutions
   and collections
NMBE: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
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)
Catalogs:
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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Geography:

Oman
Coordinates:
     Recommended::   (18° 44' 19"N, 53° 13' 33"E)

Statistics:
     This is 1 of 2166 approved meteorites from Zufar, Oman (plus 22 unapproved names)
     This is 1 of 3999 approved meteorites from Oman (plus 434 unapproved names)
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