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Dhofar 1441
Basic information Name: Dhofar 1441
     This is an OFFICIAL meteorite name.
Abbreviation: Dho 1441
Observed fall: No
Year found: 2003
Country: Oman
Mass:help 268 g
Classification
  history:
Meteoritical Bulletin:  MB 95  (2009)  Ungrouped achondrite
Recommended:  Achondrite-ung    [explanation]

This is 1 of 87 approved meteorites classified as Achondrite-ung.   [show all]
Search for other: Achondrites, Ungrouped achondrites
Comments: Approved 9 Jan 2009
Writeuphelp
Writeup from MB 95:

Dhofar 1441   18°26.16′N 54°29.03′E

Dhofar, Oman

Find: 2003

Achondrite (ungrouped)

History: Two fragments of a meteorite were found by an anonymous collector in the Dhofar province of Oman.

Physical characteristics: The dark-brown stones of 267.85 g total weight have irregular shapes. The fusion crust is not preserved.

Petrography (C. A. Lorenz, Vernad): The meteorite is a breccia, consisting of rock and mineral clasts embedded in a well crystallized melt matrix. Lithic clasts are basalts, gabbros, norites, metamorphosed pyroxene-feldspar rocks, clastic breccias, melts and rare glasses. Major phases are pyroxene and feldspar. Some pyroxenes have fine exsolution lamellae. Silica, olivine, chromite, ilmenite, troilite and metal Fe-Ni are rare phases. The matrix is fine-grained aggregate of pyroxene and feldspar. Mineral compositions and geochemistry (N. N. Kononkova, Vernad): Pyroxene is En35.3–72.5Wo1.4–5.0 (Fe/Mn = 36.3); feldspar An92.2An7.6, rare An74.4Ab23.6; olivine is Fa28.8 (Fe/ Mn = 50.4).

The bulk composition (I. A. Roshina, Vernad) XRF (wt%): SiO2 = 47.83, TiO2 = 0.30, Al2O3 = 10.41, Na2O = 0.32, K2O = 0.04, CaO = 6.5, MgO = 10.88; MnO = 0.52; FeO = 20.28, Cr2O3 = 0.53. Oxygen isotopes (Franchi I., OU): δ17O = 2.675; δ18O = 5.508.

Classification: Achondrite (ungrouped, impact melt breccia) with minor weathering.

Type specimens: A total 28.3 g and one thin section are on deposit at Vernad. An anonymous collector holds the main mass.

Data from:
  MB95
  Table 7
  Line 10:
State/Prov/County:Zufar, Oman
Date:2003
Latitude:18°26.16'N
Longitude:54°29.03'E
Mass (g):267.8
Pieces:2
Class:Ungrouped achondrite
Fayalite (mol%):28.8
Ferrosilite (mol%):27.5-64.7
Wollastonite (mol%):1.4-5
Classifier:C. Lorenz and N. Kononkova, Vernad
Type spec mass (g):28.3
Type spec location:Vernad
Main mass:anonymous
Comments:Feldspar, An7.6–92.2; Oxygen isotopes, δ18O=5.51, δ17O=2.67
Plots: O isotopes:  
Institutions
   and collections
OU: Planetary and Space Sciences Department of Physical Sciences The Open University Walton Hall Milton Keynes MK7 6AA United Kingdom, United Kingdom (institutional address; updated 8 Dec 2011)
Vernad: Vernadsky Institute of Geochemistry and Analytical Chemistry, Russia (institutional address; updated 21 Feb 2016)
Catalogs:
References: Published in Meteoritical Bulletin, no. 95, MAPS 44, 429-462 (2009)
Find references in NASA ADS:
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Geography:

Oman
Coordinates:
     Recommended::   (18° 26' 10"N, 54° 29' 2"E)

Statistics:
     This is 1 of 2119 approved meteorites from Zufar, Oman (plus 4 unapproved names)
     This is 1 of 3944 approved meteorites from Oman (plus 371 unapproved names)
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