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Ramlat Fasad 549
Basic information Name: Ramlat Fasad 549
     This is an OFFICIAL meteorite name.
Abbreviation: RF 549
Observed fall: No
Year found: 2018
Country: Oman
Mass:help 12 g
Recommended:  R3-5    [explanation]

This is 1 of 27 approved meteorites classified as R3-5.   [show all]
Search for other: Rumuruti chondrites, Rumuruti chondrites (type 3)
Comments: Approved 28 May 2024
Writeup from MB 113:

Ramlat Fasad 549 (RF 549)        19°10.289’N, 53°40.144’E

Zufar, Oman

Find: 2018 Jan 22

Classification: Rumuruti chondrite (R3-5)

History: Found during a search for meteorites.

Physical characteristics: Dark brown fragment of an individual, ablated surface partially preserved, no fusion crust. Strongly wind-ablated with protruding chondrules and breccia clasts.

Petrography: (J. Pape, E. Gnos, B. Hofmann) Brecciated chondritic texture, a cm-sized clast (internally brecciated) is dominated by petrographic grade 5. Clasts with petrographic grades 3 and 4 are common. Chondrule mean diameter is 0.32±0.25 mm (N=58). Clasts have variable shock grade S2 to S4. Abundant sulfide grains consisting of pyrrhotite and pentlandite, no iron metal. Chromite grains up to 150 μm are polycrystalline with some sulfide inclusions. Medium weathering.

Geochemistry: (J. Pape) Olivine Fa30.8±7.3, range 14.4-38.2, median 34.4 (N = 39), Fa in petrographic type 5 clast is Fa36.7±0.7 (N=12). Low-Ca pyroxene Fs8.4±7.2Wo1.7±2.2, range Fs2.6-18.3Wo0.3-6.0 (N = 6), Ca-rich pyroxene Fs9.2±1.0Wo46.9±0.7 (N = 6).

Classification: Based on chondrule size, olivine composition in petrographic type 5 clast and sulfide mineralogy, this is a brecciated Rumuruti chondrite, petrographic grades 3-5, shock level of bulk meteorite S1/2. Medium weathering.

Specimens: 3.53 g and one polished thin section at NMBE. Main mass: MHTO.

Data from:
  Table 0
  Line 0:
Origin or pseudonym:Desert plain
Date:2018 Jan 22
Mass (g):12.034
Shock stage:S1/2
Weathering grade:medium
Fayalite (mol%):30.8±7.3 (n=39)
Ferrosilite (mol%):8.4±7.2 (n=6)
Wollastonite (mol%):1.7±2.2 (n=6)
Magnetic suscept.:3.20
Classifier:J. Pape, F. Gfeller, E. Gnos, B. Hofmann, NMBE
Type spec mass (g):3.53
Type spec location:NMBE
Main mass:MHTO
Finder:Urs Eggenberger, Martin Fisch, Andreas Glauser, Gisela Weibel, Mirjam Wolffers, Wolfgang Zucha, Saif Al-Hamemi
Comments:Field number 1801_0059; submitted by Beda Hofmann
   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)
References: Published in Meteoritical Bulletin, no. 113, in preparation (2024)
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     Recommended::   (19° 10' 17"N, 53° 40' 9"E)

     This is 1 of 2531 approved meteorites from Zufar, Oman (plus 27 unapproved names)
     This is 1 of 4404 approved meteorites from Oman (plus 434 unapproved names)
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