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Dhofar 2117
Basic information Name: Dhofar 2117
     This is an OFFICIAL meteorite name.
Abbreviation: Dho 2117
Observed fall: No
Year found: 2018
Country: Oman
Mass:help 4.91 kg
Classification
  history:
Recommended:  Ureilite    [explanation]

This is 1 of 610 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 10 Apr 2021
Writeuphelp
Writeup from MB 110:

Dhofar 2117 (Dho 2117)        19°24.007’N, 54°04.463’E

Zufar, Oman

Find: 19 Jan 2018

Classification: Ureilite

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

Physical characteristics: Fragment with ablated surface, regmaglypts and traces of fusion crust, 17x14x6 cm.

Petrography: (J. Pape, E. Gnos, B. Hofmann) The sample consist mainly of olivine with minor pigeonite both with slight preferred grain orientation and shows the characteristic ureilitic texture. Typical grain size is 0.8-2 mm. Olivine rims are strongly reduced (width 150-200 μm) and contain abundant tiny metal blebs that are largely oxidized due to terrestrial weathering. Carbon platelets (up to 2 mm length) consist mainly of diamond and minor microcrystalline graphite. Silicates are weakly shocked (S2). Weathering moderate (most iron oxidized, silicates are unaffected).

Geochemistry: (J. Pape, NMBE) Olivine cores Fa21.1±0.9, Fe/Mn 42±3, Cr2O3 0.78±0.04 wt% (N = 16), reduced Ol rims have Fa>1.1. Pigeonite has Fs18.6±0.6Wo5.5±0.1, Cr2O3 1.09±0.04 wt% (N = 14).

Classification: Based on texture, mineralogy and geochemistry this is an unbrecciated, monomict, ferroan ureilite. Paired with Dhofar 2115.

Specimens: All at NMBE, including one polished thin section.

Data from:
  MB110
  Table 0
  Line 0:
State/Prov/County:Zufar
Origin or pseudonym:Desert plain
Date:19 Jan 2018
Latitude:19°24.007'N
Longitude:54°04.463'E
Mass (g):4.913 kg
Pieces:1
Class:Ureilite
Shock stage:low
Weathering grade:medium
Fayalite (mol%):21.1±0.9 (N = 16)
Ferrosilite (mol%):18.6±0.6 (N = 14)
Wollastonite (mol%):5.5±0.1 (N = 14)
Classifier:J. Pape, E. Gnos, B. Hofmann
Type spec mass (g):4913
Type spec location:NMBE
Main mass:NMBE
Finder:U. Eggenberger, M. Fisch, A. Glauser, G. Weibel, M. Wolffers, W. Zucha, S. Al-Hamemi
Comments:Field number 1801_0012; 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)
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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Photos:
CreditPhotos
Public domain photographs:
Beda Hofmann   
Geography:

Oman
Coordinates:
     Recommended::   (19° 24' 0"N, 54° 4' 28"E)

Statistics:
     This is 1 of 2168 approved meteorites from Zufar, Oman (plus 22 unapproved names)
     This is 1 of 4002 approved meteorites from Oman (plus 434 unapproved names)
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