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| O'Malley 007 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: O'Malley 007 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2011 Country: Australia Mass:  24.3 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 007 30°41’25.7"S, 131°28’24.7"E South Australia, Australia Found: 7 Apr 2011 Classification: Ordinary chondrite (H5) History: Single piece found by A. Tomkins on the Nullarbor Plain. Physical characteristics: Dark red stone with 60% rounded remnant fusion crust and a broken face. Petrography: (E. Mare, Monash) Many chondrules (to 1 mm) but few are well defined. The matrix is recrystallized and rusted. Chondrule types include RP, CC, PO, PP, BO. Fe-Ni metal grains (3%) are up to 300 μm. Troilite grains (5%) are up to 200 μm and sometimes form rims around chondrules. Both metal and troilite are partly (but not significantly) replaced by oxides, which comprise 5-10% of this meteorite. Olivine grains show undulose extinction. Geochemistry: (E. Mare, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa18.9-19.2, mean=19.00 mol%, std=0.13, n=4; Low-Ca pyroxene Fs16.7-17.3, mean=17.01 mol%, std=0.28, n=4. Classification: Ordinary chondrite (H5, S2, W2) | ||||||||||||||||||||||||||||||||||||||
| Data from: MB100 Table 1 Line 1716: |
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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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