Meteoritical Bulletin: Entry for Dhofar 1767

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Dhofar 1767

Basic information

Name: Dhofar 1767
This is an OFFICIAL meteorite name.
Abbreviation: Dho 1767
Observed fall: No
Year found: 2013
Country: Oman
Mass: 40 g

Classification
history:

Meteoritical Bulletin:	MB 102	(2013)	Howardite
Recommended:			Howardite [explanation]

This is 1 of 439 approved meteorites classified as Howardite. [show all]
Search for other: Achondrites, HED achondrites, and Howardites

Comments:

Approved 16 Dec 2013

Writeup

help

Writeup from MB 102:

Dhofar 1767 (Dho 1767) 18.817°N, 54.766°E

Zufar, Oman

Found: 2013 Jan

Classification: HED achondrite (Howardite)

History: Found by a prospector in January 2013.

Petrography: (A. Wittmann, WUSL; A. Irving, UWS) Well-consolidated breccia composed of clasts (~1 mm in size) of orthopyroxene (~15 vol.%, of more than one composition based on BSE imaging), calcic plagioclase, exsolved pigeonite, unexsolved pigeonite, metal (as clasts up to 0.1 mm containing both taenite and kamacite), olivine, chromite, ilmenite, fayalite and silica polymorph. Celestite occurs in mm-long vein-like zones of and FeNi metal grains typically show oxidized rims.

Geochemistry: (S. Kuehner, UWS; A. Wittmann, WUSL): Diogenitic orthopyroxene (Fs_20.4-24Wo_1.4-3, FeO/MnO = 29-31), orthopyroxene (Fs_39.9Wo_3.8, FeO/MnO = 30), pigeonite (Fs_51.9Wo_7.3, FeO/MnO = 27), host orthopyroxene (Fs_61.8Wo_2.7, FeO/MnO = 32), clinopyroxene exsolution lamellae, Fs_27.3Wo_42.1, FeO/MnO = 32). olivine (Fa_57.5, FeO/MnO = 49; Fa_84.7, FeO/MnO = 42), plagioclase (An₉₀Or_0.4).

Classification: Howardite.

Specimens: 9 g including one polished thin section at UWB. The remaining material is held by the anonymous finder.

Data from:
  MB102
  Table 0
  Line 0:

State/Prov/County:	Zufar
Date:	2013 Jan
Latitude:	18.817°N
Longitude:	54.766°E
Mass (g):	40
Pieces:	1
Class:	Howardite
Shock stage:	moderate
Weathering grade:	low
Fayalite (mol%):	57.5-84.7
Ferrosilite (mol%):	20.4-24; 51.9
Wollastonite (mol%):	1.4-3; 7.3
Classifier:	A. Irving, UWS, and A. Wittmann, WUSL
Type spec mass (g):	9
Type spec location:	UWB
Main mass:	Anonymous
Comments:	Submitted by A. Irving

Institutions
and collections

UWS: University of Washington, Department of Earth and Space Sciences, 70 Johnson Hall, Seattle, WA 98195, United States (institutional address; updated 15 Jan 2012)
WUSL: Washington Univ., One Brookings Drive, St. Louis, MO 63130, United States (institutional address; updated 17 Oct 2011)
UWB: University of Washington, Box 353010 Seattle, WA 98195, United States (institutional address; updated 27 Jul 2012)

Catalogs:

References:

Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015

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Geography:

Oman

Oman

Coordinates:
Recommended::	(18° 49' 1"N, 54° 45' 58"E)

Statistics:
This is 1 of 2167 approved meteorites from Zufar, Oman (plus 24 unapproved names)
This is 1 of 4001 approved meteorites from Oman (plus 436 unapproved names)

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