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| Mundrabilla 022 | |||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Mundrabilla 022 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2013 Country: Australia Mass:  66.5 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 28 Nov 2020 | ||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 109:
Mundrabilla 022 30°46’17.99"S, 127°44’32.16"E Western Australia, Australia Find: 2013 Classification: Ordinary chondrite (H5) History: A completely crusted stone weighing 66.53 g was found on open plain by G. Kelahar (Alex Bevan, WAM). Physical characteristics: Physical Characteristics: Elongated, completely crusted stone weighing 66.53 g measuring 5.5 × 3.5 × 2.5 cm (A. Bevan, WAM) Petrography: (L. Daly, L. V. Forman, Curtin). Specimen has readily defined chondrules within a heavily stained dark red matrix. The chondrules include types RP, PO, POP, C and BO, and chondrule mesostases are devitrified. Sizes range from 0.46-2.1 mm with a mean of 1.1 mm (n=13). Mineralogy consists of olivine, pyroxene, chromite, feldspar, as well as some metal and sulphide and Ca-rich phosphate. Olivine and pyroxene have undulose extinction and planar fractures. Some grains exhibit a weak mosaicism. Feldspars are <50 µm. The metal and sulfide present in the sample have been approximately 20-30% replaced with iron oxide. The sample also contains shock veins with some melt pockets. Geochemistry: Mineral Compositions and Geochemistry: (L. Daly, L. V Forman, Curtin) EDS, Olivine: Fa20.2±2.1 (n=12) with some rare fayalitic grains Fa79.6. Low Ca pyroxene: Fs17.8±0.9Wo1.3±0.3 (n=8) there are also rare augite Fs16.1Wo20.8. Feldspar Ab85.1±2.1. Classification: Ordinary Chondrite H5, S4, W2 Specimens: The WAM holds the main mass now 64.32 g and one thin section. | ||||||||||||||||||||||||||||||||||||
| Data from: MB109 Table 0 Line 0: |
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| Institutions and collections |
WAM: Department of Earth & Planetary Sciences, Western Australian Museum. Locked Bag 49, Welshpool DC, Western Australia 6986, Australia; Website (institutional address; updated 18 Oct 2011) |
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| Catalogs: |
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| References: | Published in Meteoritical Bulletin, no. 109, in preparation (2020)
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Geography:
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Statistics: This is 1 of 348 approved meteorites from Western Australia, Australia (plus 1 unapproved name) (plus 11 impact craters) This is 1 of 719 approved meteorites from Australia (plus 11 unapproved names) (plus 27 impact craters) | ||||||||||||||||||||||||||||||||||||
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| Also see: |
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| Revision history: |
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