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Jiddat al Harasis 800
Basic information Name: Jiddat al Harasis 800
     This is an OFFICIAL meteorite name.
Abbreviation: JaH 800
Observed fall: No
Year found: 2011
Country: Oman
Mass:help 1299 g
Meteoritical Bulletin:  MB 102  (2013)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 610 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 12 Aug 2013
Writeup from MB 102:

Jiddat al Harasis 800 (JaH 800)        19°52.955’N, 56°39.780’E

Al Wusta, Oman

Found: 2011 Jan 22

Classification: Ureilite

History: Four fragments with a combined mass of 1299.3 g were found during a search for meteorites by D. Abplanalp, U. Eggenberger, N. Federspiel, E. Gnos, B. Hofmann.

Physical characteristics: Dark brown rock, strongly wind-eroded, no fusion crust.

Petrography: (B. Hofmann, NMBE; E. Gnos, MHNGE; N. Greber, Bern): The rock shows an equigranular texture with a grainsize of 0.8-1.8 mm and consists of olivine and Ca-rich pyroxene (pigeonite). The px/(ol+px)-ratio is ~0.3. Common carbon-platelets (up to 1 mm) contain both graphite and diamond. Iron metal and rare troilite are only preserved as tiny inclusions in silicates. Abundant iron hydroxides at grain boundaries represents the bulk of completely oxidized metal. The shock grade of silicates is S2 (weak to strong undulose extincion). Silicates are weakly shocked. Strongly weathered.

Geochemistry: Olivine Fa16.2±4.8 (3.7-19.1, n=15) with nearly pure forsterite in reduced rims; pigeonite 15.8±0.2 10.1±0.05 (n=10). Bulk analysis (ICP-OES) shows Fe/Mn (wt) = 51.4, Ni = 1460 ppm, Cr = 4960 ppm.

Classification: Based on texture and mineralogy this is a ureilite.

Specimens: All at NMBE.

Data from:
  Table 0
  Line 0:
State/Prov/County:Al Wusta
Origin or pseudonym:Desert plain
Date:2011 Jan 22
Mass (g):1299
Fayalite (mol%):16.2±4.8 (3.7-19.1, n=15)
Ferrosilite (mol%):15.8±0.2 (n=10)
Wollastonite (mol%):10.1±0.05 (n=10)
Classifier:B. Hofmann NMBE, E. Gnos MHNGE, N. Greber Bern
Type spec mass (g):1299
Type spec location:NMBE
Main mass:NMBE
Finder:D. Abplanalp, U. Eggenberger, N. Federspiel, E. Gnos, B. Hofmann
Comments:Submitted by Beda Hofmann
   and collections
NMBE: Natural History Museum Bern Bernastrasse 15 CH-3005 Bern Switzerland, Switzerland; Website (institutional address; updated 2 Mar 2012)
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 Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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     Recommended::   (19° 52' 57"N, 56° 39' 47"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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