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Dhofar 1754
Basic information Name: Dhofar 1754
     This is an OFFICIAL meteorite name.
Abbreviation: Dho 1754
Observed fall: No
Year found: 2001
Country: Oman
Mass:help 580 g
Meteoritical Bulletin:  MB 102  (2013)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 453 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Comments: Approved 1 Mar 2013
Writeup from MB 102:

Dhofar 1754 (Dho 1754)        19°23.58’N, 54°33.25’E

Zufar, Oman

Found: 2001 May 2

Classification: HED achondrite (Howardite)

History: A single fusion-crusted rock of 580 g was found near Dhofar 930 by an anonymous finder May 2, 2001.

Petrography: In thin section the rock has two distinct lithologies: one is basaltic and the other is diogenitic (each about 50 vol% in the section studied). Thus the rock is a breccia. The low-Ca pyroxene is variable in composition. Most are Fs22-34; more Fs-rich olivine (~Fs45-60) probably belongs to the eucritic lithology. Typical plagioclase has a composition of An82-95. The meteorite is a howardite.

Geochemistry: 42 randomly selected low-Ca pyroxenes were analyzed by SEM-EDS: The low-Ca pyroxene is variable in composition (~Fs22-60) with mean Fe/Mn= 32.5. In the distribution a clear peak around Fs23-25 is found, which is typical for diogenites; more Fs-rich pyroxene (~Fs40-60) probably belongs to the eucritic lithology. Plagioclase has a composition of An82-95.

Classification: Pairing with Dhofar 930 (polymict eucrite) is unlikely because of the high abundance of Fs-poor (Fs<30) low-Ca pyroxene within Dhofar 1754, which has not been reported from Dhofar 930.

Data from:
  Table 0
  Line 0:
Date:2001 May 2
Mass (g):580
Ferrosilite (mol%):22-60
Classifier:A. Bischoff and M. Matthes, IfP; E. Haiderer, Vienna
Type spec mass (g):22
Type spec location:IfP
Main mass:unknown
Comments:Field-name: MARU; submitted by Addi Bischoff
   and collections
IfP: Institut für Planetologie, Wilhelm-Klemm-Str. 10, 48149 Münster, Germany (institutional address; updated 23 Jan 2012)
Haiderer: Erich Haiderer Laboratory, P.O. Box 88, A-1140 Vienna, Austria (private address; updated 7 Jan 2015)
Vienna: University of Vienna, Dr-Karl-Lueger-Ring 1, A-1010 Wien, Austria (institutional address)
References: Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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     Recommended::   (19° 23' 35"N, 54° 33' 15"E)

     This is 1 of 2169 approved meteorites from Zufar, Oman (plus 24 unapproved names)
     This is 1 of 4006 approved meteorites from Oman (plus 436 unapproved names)
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