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Jiddat al Harasis 818
Basic information Name: Jiddat al Harasis 818
     This is an OFFICIAL meteorite name.
Abbreviation: JaH 818
Observed fall: No
Year found: 2012
Country: Oman
Mass:help 19.4 g
Meteoritical Bulletin:  MB 106  (2018)  CV3
Recommended:  CV3    [explanation]

This is 1 of 602 approved meteorites (plus 1 unapproved name) classified as CV3.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 3), CV chondrites, and CV-CK clan chondrites
Comments: Approved 4 Mar 2017
Writeup from MB 106:

Jiddat al Harasis 818 (JaH 818)        19°44.439’N, 55°40.591’E

Al Wusta, Oman

Find: 11 Jan 2012

Classification: Carbonaceous chondrite (CV3)

History: Found by Edwin Gnos, Beda Hofmann, Karl Wimmer, Elise Wimmer and Florian Zurfluh during a search for meteorites on January 11, 2012.

Physical characteristics: Single wind-ablated stone of 19.36 g, no fusion crust preserved.

Petrography: (E. Gnos, MHNGE and B. Hofmann, NMBE) The meteorite consists of up to 1.5 mm sized chondrules (approx. 45 vol%; average size 0.75±0.33 mm n=48) with partially recrystallized glass, CAIs (0.2-3.0 mm; approx. 5 vol%), and dark matrix (approx. 50 vol%). Magnetite is rather rare, troilite is largely oxidized. Some Fe-hydroxides probably resulted from oxidation of iron metal.

Geochemistry: (N. Greber, Bern) Olivine compositions are Fa11.2-50.1, median Fa30.0 (n=4), pyroxene compositions are Fs0.8-5.7Wo0.9-5.7, median Fs1.0Wo1.3 (n=9). Oxygen isotopes: (R. Greenwood, OU) gave δ18O=5.43, δ17O=0.35, Δ17O= -2.47 (all per mil).

Classification: CV3 based on petrography, matrix abundance, mean chondrule size, presence of large CAIs and oxygen isotopes.

Specimens: All at NMBE.

Data from:
  Table 0
  Line 0:
State/Prov/County:Al Wusta
Origin or pseudonym:desert plain
Date:11 Jan 2012
Mass (g):19.36
Shock stage:S1
Fayalite (mol%):0.1-50.1
Ferrosilite (mol%):1.0-5.7
Wollastonite (mol%):0.9-5.7
Classifier:B. Hofmann, E. Gnos, E. Greber, NMBE
Type spec mass (g):19.36
Type spec location:NMBE
Main mass:NMBE
Finder:Edwin Gnos, Beda Hofmann, Elise Wimmer, Karl Wimmer, Florian Zurfluh
Comments:Submitted by Beda Hofmann
Plots: O isotopes:  
   and collections
NMBE: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
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)
MHNGE: Muséum d’histoire naturelle, Route de Malagnou 1, CH-1211 Genève 6 , Switzerland (institutional address; updated 27 Oct 2011)
Bern: University of Bern, University of Bern, Hochschulstrasse 4, CH-3012 Bern, Switzerland (institutional address)
References: Published in Gattacceca J., Bouvier A., Grossman J., Metzler K., and Uehara M. (2019) Meteoritical Bulletin, no. 106. Meteorit. Planet. Sci. 54 in press.
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     Recommended::   (19° 44' 26"N, 55° 40' 35"E)

     This is 1 of 1756 approved meteorites from Al Wusta, Oman (plus 75 unapproved names)
     This is 1 of 4002 approved meteorites from Oman (plus 434 unapproved names)
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