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Ramlat Fasad 534
Basic information Name: Ramlat Fasad 534
     This is an OFFICIAL meteorite name.
Abbreviation: RF 534
Observed fall: No
Year found: 2019
Country: Oman
Mass:help 12 g
Classification
  history:
Recommended:  Martian (Shergottite)    [explanation]

This is 1 of 324 approved meteorites (plus 2 unapproved names) classified as Martian (Shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 28 May 2024
Writeuphelp
Writeup from MB 113:

Ramlat Fasad 534 (RF 534)        18°54.075’N, 53°14.929’E

Zufar, Oman

Find: 2019 Jan 24

Classification: Martian meteorite (Shergottite)

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

Physical characteristics: Broken greenish-gray individual, 2.5 × 2.0 × 1.0 cm, ablated surface with vesicular fusion crust preserved on one side.

Petrography: (J. Pape, E. Gnos, B. Hofmann) The sample consist mainly of olivine pigeonitic pyroxene and maskelynitic plagioclase. Olivine grains are chemically zoned and occur as large (up to 3 mm) porphyritic grains in a relatively fine-grained matrix mostly consisting of equigranular pyroxene and interstitial maskelynite (both up to 0.5 mm). Some olivine grains are speckled with minute Cr-spinel grains. Pyrrhotite, chromite and Fe-rich spinel occur as accessory phases. Dark melt pockets up to several mm in size are common, some with large vesicles and both dendritic and grainy recrystallization. Fusion crust partly recrystallized, glass shows partial alteration. Strongly shocked. Low degree of weathering.

Geochemistry: (J. Pape) Olivine Fa38.0±18.3 (Fa19.5-79.8) (N = 24). Pigeonite has Fs28.7±5.9Wo14.9±7.2 (Fs17.7-36.6Wo5.2-33.2), mean FeO/MnO = 27.3±2.1 (N = 27). Maskelynite has An64.8±1.6Or0.5±0.1 (N = 24).

Classification: Based on petrography and mineral compositions this is an olivine phyric shergottite, strongly shocked, low weathering. Paired with Ramlat Fasad 533 (found at a distance of 1060 m).

Specimens: 3.06 g and one polished thin section at NMBE. Main mass: MHTO.

Data from:
  MB113
  Table 0
  Line 0:
State/Prov/County:Zufar
Origin or pseudonym:Desert plain
Date:2019 Jan 24
Latitude:18°54.075'N
Longitude:53°14.929'E
Mass (g):11.969
Pieces:1
Class:Martian (Shergottite)
Shock stage:strong
Weathering grade:low
Fayalite (mol%):38.0±18.3 (n=24)
Ferrosilite (mol%):28.7±5.9 (n=27)
Wollastonite (mol%):14.9±7.2 (n=27)
Magnetic suscept.:3.04
Classifier:J. Pape, E. Gnos, B. Hofmann
Type spec mass (g):3.06
Type spec location:NMBE
Main mass:MHTO
Finder:M. Bucher, U. Eggenberger, M. Ulrich, M. Wolffers, A. Zappatini, W. Zucha, I. Al-Sawafi, N. Al-Rizeiqi
Comments:Field number 19-0080; 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. 113, in preparation (2024)
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Geography:

Oman
Coordinates:
     Recommended::   (18° 54' 5"N, 53° 14' 56"E)

Statistics:
     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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