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Dhofar 1428
Basic information Name: Dhofar 1428
     This is an OFFICIAL meteorite name.
Abbreviation: Dho 1428
Observed fall: No
Year found: 2006
Country: Oman
Mass:help 213 g
Classification
  history:
Meteoritical Bulletin:  MB 91  (2007)  Lunar (anorthositic breccia)
Recommended:  Lunar    [explanation]

This is 1 of 108 approved meteorites classified as Lunar.   [show all]
Search for other: Lunar meteorites
Comments: Approved 11 Jun 2006
Writeuphelp
Writeup from MB 91:

Dhofar 1428                                        18°53.44′N, 54°20.36′E

Dhofar, Oman

Find: March 2006

Achondrite (lunar anorthositic breccia)

History and physical characteristics: A 213 g dark gray stone with little remaining fusion crust found within the desert of the Dhofar regions of Oman.

Petrography: (T. Bunch and J. Wittke, NAU) Clast-rich impact-melt breccia (mingled) that consists mostly of light to dark gray clasts of previously formed, plagioclase-rich breccias and white lithic and mineral clasts of anorthositic rocks and plagioclase. Minor amounts of norites, anorthositic gabbros, troctolites, and ophitic/subophitic basalts were also observed. Groundmass is composed of quench-textured silicate melt (plagioclase, pyroxenes, opaque minerals and glass) and isolated pockets of vesicular glassy melt.

Mineral compositions and geochemistry: Anorthositic clast plagioclase (An93.8–98); norite olivine (Fa36, FeO/MnO = 104), plagioclase (An96.4), orthopyroxene (Fs28.4Wo4.1; FeO/MnO = 51); troctolite plagioclase (An95.5), olivine (Fa25.8, FeO/MnO = 89); subophitic basalts that contain highly zoned pyroxenes (Fs14.9Wo5.1 to rims of Fs41.2Wo15.2).

Classification: Achondrite (lunar anorthositic breccia); component’s shock levels range from moderate to completely melted; minimal weathering.

Type specimen: A 20.7 g sample is on deposit at NAU*. Ward holds the main mass.

Data from:
  MB113
  Table 0
  Line 0:
Classifier:T. Bunch and J. Wittke, NAU
Type spec location:NAU* type specimen now at UWB. 20.7 g including one polished thin section at UWB; remainder with owner.
Comments:Work name 919, thin section SIM1
Data from:
  MB91
  Table 5
  Line 44:
Date:2006 Mar
Latitude:18°53.44'N
Longitude:54°20.36'E
Mass (g):213
Pieces:1
Class:Lunar
Classifier:T. Bunch and J. Wittke, NAU
Type spec mass (g):20.7
Type spec location:NAU*
Main mass:Ward
Institutions
   and collections		 NAU*: Collection discontinued. Specimens redistributed as shown in individual meteorite records, United States (institutional address; updated 24 Jun 2024)
UWB: University of Washington, Burke Museum of Natural History and Culture, Box 353010 Seattle, WA 98195, United States (institutional address; updated 9 Oct 2023)
NAU: Geology, Bldg 12 Knoles Dr Northern Arizona University, Flagstaff, AZ 86011, United States (institutional address; updated 12 Apr 2012)
Catalogs:
References: Published in Meteoritical Bulletin, no. 91, MAPS 42, 413-466 (2007)
Published in Meteoritical Bulletin, no. 113, in preparation (2024)
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Photos:
CreditPhotos
Photos from the Encyclopedia of Meteorites:
Mike Farmer         
Photos uploaded by members of the Encyclopedia of Meteorites.
    (Caution, these are of unknown reliability)
Doug R   
Geography:

Oman
Coordinates:
     Recommended::   (18° 53' 26"N, 54° 20' 22"E)

Statistics:
     This is 1 of 2653 approved meteorites from Zufar, Oman (plus 27 unapproved names)
     This is 1 of 4526 approved meteorites from Oman (plus 419 unapproved names)
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