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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 594 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 Meteoritical Bulletin, no. 110, in preparation (2021)
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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 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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