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| Jiddat al Harasis 819 | |||||||||||||||||||||||||||||||||||||||
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| 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:  372 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 23 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 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
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: |
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| 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) |
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| 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:
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Statistics: This is 1 of 1756 approved meteorites from Al Wusta, Oman (plus 75 unapproved names) This is 1 of 4000 approved meteorites from Oman (plus 436 unapproved names) | ||||||||||||||||||||||||||||||||||||||
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