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Ramlat Fasad 529
Basic information Name: Ramlat Fasad 529
     This is an OFFICIAL meteorite name.
Abbreviation: RF 529
Observed fall: No
Year found: 2018
Country: Oman
Mass:help 158.5 g
Classification
  history:
Meteoritical Bulletin:  MB 110  (2022)  Acapulcoite
Recommended:  Acapulcoite    [explanation]

This is 1 of 93 approved meteorites classified as Acapulcoite.   [show all]
Search for other: Acapulcoite-lodranite family, Acapulcoites, and Primitive achondrites
Comments: Approved 30 Aug 2021
Writeuphelp
Writeup from MB 110:

Ramlat Fasad 529        18°57.644’N, 53°15.524’E

Zufar, Oman

Find: 2018 Jan 23

Classification: Primitive achondrite (Acapulcoite)

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

Physical characteristics: Dark brown, rusty stone, rounded

Petrography: (J. Pape, E. Gnos, B. Hofmann) The sample consists dominantly of olivine, orthopyroxene, Ca-rich clinopyroxene and plagioclase. Mostly oxidized Fe-Ni-metal (~10 vol%) and partly altered troilite (~5 vol%). Chromite and graphite are minor constituents. Equigranular texture with a typical grain size of 0.2-0.4 mm with abundant triple junctions among silicates. Veins are filled with weathering products. Unshocked (S1). Weathering is strong (equivalent to W3).

Geochemistry: (J. Pape) Olivine Fa9.4±0.3, FeO/MnO=17±1 (N=8), orthopyroxene Fs9.1±0.2Wo1.9±0.3, FeO/MnO=11±1 (N = 7), Ca-pyroxene Fs4.3±0.4Wo45.1±1.8, Cr2O3 1.41±0.11 wt%, FeO/MnO=8±1 (N = 11), plagioclase An18.1±0.8, Or3.9±0.3 (N = 11). Homogeneous mineral compositions.

Classification: Based on texture and mineral composition this meteorite is classified as acapulcoite, unshocked, strongly weathered.

Specimens: 32.49 g, mineral separates, 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:2018 Jan 23
Latitude:18°57.644'N
Longitude:53°15.524'E
Mass (g):158.461
Pieces:1
Class:Acapulcoite
Shock stage:weak
Weathering grade:high
Fayalite (mol%):9.4±0.4 (n=8)
Ferrosilite (mol%):9.1±0.2 (n=7)
Wollastonite (mol%):1.9±0.3 (n=7)
Magnetic suscept.:4.80
Classifier:J. Pape, E. Gnos, B. Hofmann
Type spec mass (g):32.490
Type spec location:NMBE
Main mass:MHTO
Finder:U. Eggenberger, M. Fisch, A. Glauser, G. Weibel, M. Wolffers, W. Zucha, S. Al-Hamemi
Comments:Field number 1801_0077; 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 Gattacceca J., McCubbin F.M., Grossman J., Bouvier A., Chabot N.L., D'Orazio M., Goodrich C., Greshake A., Gross J., Komatsu M., Miao B., and Schrader D. (2022) The Meteoritical Bulletin, No. 110. Meteorit. Planet. Sci. 1-4
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Geography:

Oman
Coordinates:
     Recommended::   (18° 57' 39"N, 53° 15' 31"E)

Statistics:
     This is 1 of 2167 approved meteorites from Zufar, Oman (plus 26 unapproved names)
     This is 1 of 3998 approved meteorites from Oman (plus 441 unapproved names)
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