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| O'Malley 005 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: O'Malley 005 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2011 Country: Australia Mass:  0.7 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 11567 approved meteorites (plus 23 unapproved names) classified as H5. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 23 Feb 2012 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 100:
O’Malley 005 30°39’13.1"S, 131°28’26.0"E South Australia, Australia Found: 7 Apr 2011 Classification: Ordinary chondrite (H5) History: Single piece found by A. Tait on the Nullarbor Plain. Physical characteristics: Small rounded weathered stone with some remnant fusion crust. Petrography: (E. Mare, Monash) Indistinct chondrules (not clearly defined) in recrystallized matrix. Mineralogy includes olivine, pyroxene, plagioclase, Fe-Ni metal, and troilite. Chondrule types include CC, RP, PO, PP, POP. Fe-Ni metal grains (1%) are mostly <20 μm. Troilite grains (1-2%) are up to 300 μm but mostly <50 μm. Metal and troilite have been heavily replaced by oxides, which also occur in significant veins 50-100 μm, and account for ~15% of the meteorite. Olivine shows undulose extinction. Geochemistry: (E. Mare, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa19.0-19.8, mean=19.29 mol%, std=0.32, n=5; Low-Ca pyroxene Fs16.9-17.9, mean=17.32 mol%, std=0.41, n=5. Classification: Ordinary chondrite (H5, S2, W3) | ||||||||||||||||||||||||||||||||||||||
| Data from: MB100 Table 1 Line 1714: |
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| Institutions and collections |
Monash: Building 28
School of Geosciences
Monash University
Victoria 3800
Australia, Australia (institutional address; updated 12 Dec 2012) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 100, MAPS 49, E1-E101 (2014)
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Geography:
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Statistics: This is 1 of 241 approved meteorites from South Australia, Australia (plus 3 unapproved names) (plus 4 impact craters) This is 1 of 719 approved meteorites from Australia (plus 11 unapproved names) (plus 27 impact craters) | ||||||||||||||||||||||||||||||||||||||
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| Revision history: |
This lists important revisions made to data for this record.
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