Meteoritical Bulletin: Entry for Dhofar 2120

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Dhofar 2120

Basic information

Name: Dhofar 2120
This is an OFFICIAL meteorite name.
Abbreviation: Dho 2120
Observed fall: No
Year found: 2019
Country: Oman
Mass: 1583 g

Classification
history:

Recommended:

Ureilite [explanation]

This is 1 of 604 approved meteorites classified as Ureilite. [show all]
Search for other: Achondrites, Ureilites

Comments:

Approved 10 Apr 2021

Writeup

help

Writeup from MB 110:

Dhofar 2120 (Dho 2120) 19°22.918’N, 54°02.873’E

Zufar, Oman

Find: 18 Jan 2019

Classification: Ureilite

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

Physical characteristics: Part of a broken individual, wind-ablated, 16 cm maximum size.

Petrography: (J. Pape, E. Gnos, B. Hofmann) The sample consist mainly of olivine and pigeonite and shows the characteristic ureilitic texture. Typical grain size of silicates is 1-2.5 mm. Well developed reduction rims (width 100-150 μm). Carbon platelets up to 1.5 mm, diamond with minor microcrystalline graphite. Silicates are weakly shocked (S2). Moderate weathering (most iron oxidized, silicates are unaffected).

Geochemistry: (J. Pape, NMBE) Olivine cores Fa_21.7±0.3, Fe/Mn 43±2, Cr₂O₃ 0.78±0.03 wt% (N = 20), reduced Ol rims have Fa>3.8. Pigeonite has Fs_18.8±0.1Wo_5.4±0.1, Cr₂O₃ 1.12±0.02 wt% (N = 17).

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

Specimens: 59.43 g including 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:	18 Jan 2019
Latitude:	19°22.918'N
Longitude:	54°02.873'E
Mass (g):	1583
Pieces:	1
Class:	Ureilite
Shock stage:	low
Weathering grade:	medium
Fayalite (mol%):	21.7±0.3 (N = 20)
Ferrosilite (mol%):	18.8±0.1 (N = 17)
Wollastonite (mol%):	5.4±0.1 (N = 17)
Classifier:	J. Pape, E. Gnos, B. Hofmann
Type spec mass (g):	59.43
Type spec location:	NMBE
Main mass:	MHTO
Finder:	M. Bucher, U. Eggenberger,M. Wolffers, M. Ulrich, A. Zappatini, W. Zucha, I. Al-Sawafi, N. Al-Rizeiqi
Comments:	Field number 19_0022; 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. 110, in preparation (2021)

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Geography:

Oman

Oman

Coordinates:
Recommended::	(19° 22' 55"N, 54° 2' 52"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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