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Jiddat al Harasis 819
Basic information Name: Jiddat al Harasis 819
     This is an OFFICIAL meteorite name.
Abbreviation: JaH 819
Observed fall: No
Year found: 2012
Country: Oman
Mass:help 372 g
Classification
  history:
Meteoritical Bulletin:  MB 103  (2014)  H4-an
Recommended:  H4-an    [explanation]

This is 1 of 24 approved meteorites classified as H4-an.   [show all]
Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7)
Comments: Approved 28 Jan 2014
Writeuphelp
Writeup from MB 103:

Jiddat al Harasis 819 (JaH 819)        19°38.407’N, 55°32.047’E

Al Wusta, Oman

Found: 11 Jan 2012

Classification: Ordinary chondrite (H4, anomalous)

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 372.1 g, no fusion crust preserved.

Petrography: (E. Gnos, MHNGE and B. Hofmann, NMBE) The meteorite contains up to 1.8 mm sized chondrules (average size 0.98±0.40 mm n=14), chondrules are poorly delineated. Petrographic grade 4 based on finely recrystallized glass (plagioclase <2 μm). Shock level S3. Troilite and iron are >95% oxidized (W4).

Geochemistry: (N. Greber, Bern) Olivine compositions are Fa13.9-15.3, median Fa14.4 (n=26), pyroxene compositions are Fs12.9-13.7Wo0.4-1.2, median Fs13.2Wo0.7 (n=9). The low iron content of olivine is confirmed by XRD (Fa14.8). Oxygen isotopes: (R. Greenwood, OU) gave δ18O=5.77, δ17O=3.65, Δ17O= 0.653 (all per mil).

Classification: Significantly lower Fe content in olivine and pyroxene than in normal H chondrites, larger chondrule size, oxygen isotopes comparable to LL. Based on chemical similarity with H chondrites this meteorite is classified as anomalous H chondrite (H4-an).

Specimens: All at NMBE.

Data from:
  MB103
  Table 0
  Line 0:
State/Prov/County:Al Wusta
Origin or pseudonym:desert plain
Date:11 Jan 2012
Latitude:19°38.407'N
Longitude:55°32.047'E
Mass (g):372.116
Pieces:4
Class:H4-an
Shock stage:S3
Weathering grade:W4
Fayalite (mol%):14.4
Ferrosilite (mol%):13.2
Wollastonite (mol%):0.7
Classifier:B. Hofmann, E. Gnos, E. Greber
Type spec mass (g):372.116
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:  
Institutions
   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)
Catalogs:
References: Published in Meteoritical Bulletin, no. 103, MAPS 52, 1014, May 2017, http://onlinelibrary.wiley.com/doi/10.1111/maps.12888/full
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Geography:

Oman
Coordinates:
     Recommended::   (19° 38' 24"N, 55° 32' 3"E)

Statistics:
     This is 1 of 1759 approved meteorites from Al Wusta, Oman (plus 75 unapproved names)
     This is 1 of 4006 approved meteorites from Oman (plus 436 unapproved names)
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