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Ramlat Fasad 526
Basic information Name: Ramlat Fasad 526
     This is an OFFICIAL meteorite name.
Abbreviation: RF 526
Observed fall: No
Year found: 2018
Country: Oman
Mass:help 7.6 g
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 594 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 10 Apr 2021
Writeuphelp
Writeup from MB 110:

Ramlat Fasad 526        18°56.309’N, 53°19.797’E

Zufar, Oman

Find: 06 Feb 2018

Classification: Ureilite

History: A rust-brown fragment was found during a search for meteorites.

Physical characteristics: Irregular fragment of 2.5 cm maximum size.

Petrography: (J. Pape, E. Gnos, B. Hofmann) Silicate grains with a typical grain size of 2-3 mm show weak parallel orientation. The silicates are strongly fractured, strong undulous extincion and parallel fractures in olivine, indicating moderate shock (S3). Reduction affects silicate rims (typically 100 μm wide) and areas of fracturing in olivine. Strong weathering with partial alteration of olivine. Some metallic Fe and troilite preserved as inclusions in silicates. Carbon platelets are diamond-rich and up to 2.5 mm in size.

Geochemistry: (J. Pape, NMBE) Olivine cores Fa23.3±0.4, Fe/Mn 49±2, Cr2O3 0.72±0.03 wt% (N = 17), reduced Ol rims have Fa>2.7. Pigeonite has Fs19.6±0.2Wo7.9±0.1, Cr2O3 1.06±0.03 wt% (N = 18).

Classification: Based on texture, mineralogy and geochemistry this is an unbrecciated, monomict, ferroan ureilite.

Specimens: 1.632 g including one polished thin section at NMBE, main mass: MHTO

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Zufar
Origin or pseudonym:Desert plain
Date:06 Feb 2018
Latitude:18°56.309'N
Longitude:53°19.797'E
Mass (g):7.628
Pieces:1
Class:Ureilite
Shock stage:medium
Weathering grade:Strong
Fayalite (mol%):23.3±0.4 (N = 17)
Ferrosilite (mol%):19.6±0.2 (N = 18)
Wollastonite (mol%):7.9±0.1 (N = 18)
Classifier:J. Pape, E. Gnos, B. Hofmann
Type spec mass (g):1.632
Type spec location:NMBE
Main mass:NMBE
Finder:T. Blaise, E. Gnos, B. Hofmann, F. Mechelke, M. Sliz, I. Al-Sawafi
Comments:Field number 1802_0183; 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)
MHTO: Ministry of Heritage and Tourism Muscat , Oman (institutional address; updated 10 Apr 2021)
Catalogs:
References: Published in Meteoritical Bulletin, no. 110, in preparation (2021)
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Geography:

Oman
Coordinates:
     Recommended::   (18° 56' 19"N, 53° 19' 48"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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