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Jiddat al Harasis 479
Basic information Name: Jiddat al Harasis 479
     This is an OFFICIAL meteorite name.
Abbreviation: JaH 479
Observed fall: No
Year found: 2008
Country: Oman
Mass:help 553 g
Meteoritical Bulletin:  MB 97  (2010)  Basaltic shergottite
Recommended:  Martian (shergottite)    [explanation]

This is 1 of 322 approved meteorites (plus 2 unapproved names) classified as Martian (shergottite).   [show all]
Search for other: Martian meteorites
Comments: Approved 1 Sep 2009
Writeup from MB 97:

Jiddat al Harasis 479        19°47.139’N, 55°51.21’E


Find: 2008

Basaltic shergottite

History: This meteorite was found in the desert of Oman.

Physical characteristics: One individual greenish-gray stone weighing 553 g, incompletely covered with black fusion crust.

Petrography: (M.A. Ivanova, C.A. Lorenz, Vernad): The meteorite is a coarse-grained rock of subophitic texture. It is composed of anhedral pigeonite and subhedral, elongated augite grains 1–2 mm in size, and isotropic feldspar lathes 40–60 mm wide and up to 1.5 mm long, between pyroxene gains. Minor phases are olivine, ilmenite, silica, orthoclase, apatite, whitlockite, zircon, pyrrhotite, and troilite. The fine-grained aggregates of clinopyroxene, olivine, and silica occur on the outer parts of pyroxene grains.

Geochemistry: (EPMA, N.N. Kononkova, Vernad): Pyroxenes are zoned, pigeonite En2.0–40.6Wo12.0–19.9 (Fe⁄Mn = 41 at., Mg⁄(Mg + Fe) = 0.02–0.50 at.); augite En14.7–46.0Wo20.4–31.4 (Fe⁄Mn = 28 at., Mg⁄(Mg + Fe) = 0.19–0.64 atom%), olivine Fo3.8 (Fe⁄Mn = 54.4 at.). Feldspar is non-stoichiometric maskelynite and varies in composition: An76Ab18Or6–An66Ab31Or3.

   Concentrations of REEs (INAA, Vernad, ppm): La 1.4, Ce 3.36, Nd 2.18, Sm 0.77, Eu 0.24, Tb 0.21, Yb 1.27, Lu 0.25.

Oxygen isotopic composition (I.A. Franchi OU): δ17O = 2.951 ‰, δ18O = 5.070 ‰, Δ17O = 0.315‰.

Classification: Basaltic shergottite.

Specimens: A total of 25.7 g and one thin section are on deposit at Vernad. An anonymous finder holds the main mass.

Data from:
  Table 5
  Line 7:
Mass (g):553
Class:Basaltic shergottite
Ferrosilite (mol%):28.1-47.4
Wollastonite (mol%):12-19.9
Classifier:M.A. Ivanova, C.A. Lorenz,
Type spec mass (g):25.7
Type spec location:Vernad
Main mass:Anon
Comments:(Franchi I.A. OU) d17O = 2.951 ‰, d18O = 5.070 ‰, D17O = 0.315 ‰.
Plots: O isotopes:  
   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)
References: Published in Meteoritical Bulletin, no. 97, MAPS 45, 449-493 (2010)
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     Recommended::   (19° 47' 8"N, 55° 51' 13"E)

     This is 1 of 1780 approved meteorites from Al Wusta, Oman (plus 81 unapproved names)
     This is 1 of 4396 approved meteorites from Oman (plus 442 unapproved names)
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