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Ramlat Fasad 548
Basic information Name: Ramlat Fasad 548
     This is an OFFICIAL meteorite name.
Abbreviation: RF 548
Observed fall: No
Year found: 2017
Country: Oman
Mass:help 67.8 g
Classification
  history:
Recommended:  CO3    [explanation]

This is 1 of 589 approved meteorites (plus 1 unapproved name) classified as CO3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CM-CO clan chondrites, and CO chondrites
Comments: Approved 30 Aug 2021
Writeuphelp
Writeup from MB 110:

Ramlat Fasad 548        19°09.463’N, 53°26.404’E

Zufar, Oman

Find: 2017 Feb 10

Classification: Carbonaceous chondrite (CO3)

History: Eight fragments were found in close proximity during a search for meteorites.

Physical characteristics: Reddish brown broken fragments, maximum size 4 × 4 cm, no fusion crust.

Petrography: (Åke Rosén, E. Gnos, B. Hofmann) Chondrules, and CAIs and olivine grains (up to 1 mm) in dark-brown matrix. Typical size of chondrules 0.2-0.6 mm. Grains of FeS (to 50 μm) and iron metal (to 20 μm) are present in matrix and chondrules, but most of these minerals are altered. Unshocked (S1), strongly weathered, olivine is partially altered.

Geochemistry: (Å. Rosén) Olivine Fa18.1±16.6, range Fa0.7-44.2 (N = 53). Orthopyroxene Fs7.1±13.4Wo2.2±1.9 (N = 4). Oxygen isotopes: (R. Greenwood, OU) δ18O = -0.502 δ17O = -4.907 Δ17O = -4.646 (all permil).

Classification: Based on chondrule size, texture, mineralogy and oxygen isotopes this is a carbonaceous chondrite of type CO3. Strong weathering, unshocked (S1).

Specimens: 22.28 g and 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:2017 Feb 10
Latitude:19°09.463'N
Longitude:53°26.404'E
Mass (g):67.772
Pieces:8
Class:CO3
Shock stage:S1
Weathering grade:high
Fayalite (mol%):18.1±16.6 (n=53)
Ferrosilite (mol%):7.1±13.4 (n=4)
Wollastonite (mol%):2.2±1.9 (n=4)
Magnetic suscept.:4.27
Classifier:Å. Rosén, E. Gnos, B. Hofmann
Type spec mass (g):22.280
Type spec location:NMBE
Main mass:MHTO
Finder:Martin Bucher, Urs Eggenberger, Edwin Gnos, Beda Hofmann, Ioannis Kouvatsis, Malgorzata Sliz, A. Al-Hashemi
Comments:Field number 1702_0365; submitted by Beda Hofmann
Plots: O isotopes:  
Institutions
   and collections
NMBE: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
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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Photos:
CreditPhotos
Public domain photographs:
Beda Hofmann      
Geography:

Oman
Coordinates:
     Recommended::   (19° 9' 28"N, 53° 26' 24"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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