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| Biduna Blowhole 005 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Biduna Blowhole 005 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2012 Country: Australia Mass:  24.2 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 6350 approved meteorites (plus 2 unapproved names) classified as H4. [show all] Search for other: H chondrites, H chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 2 Feb 2019 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 108:
Biduna Blowhole 005 31°04’50.8"S, 131°15’30.9"E South Australia, Australia Find: 19 May 2012 Classification: Ordinary chondrite (H4) History: Single sample found on the windblown edge of a large claypan by J. Kuyken. Physical characteristics: Mottled red and black sample with 35% fusion crust and several cracks. Petrography: (A. Tomkins, Monash) Chondrules edges are sharp, glassy chondrules are barely recrystallized; these and chondrule mesostaces have sub-μm crystallites. Chondrules vary significantly in size and composition (varieties include RP, BO, PO, PP, POP, GOP, C, glassy). Olivine has weak undulose extinction; there is mild shock melting and some troilite has been mobilised along fractures. There are sparse troilite halos around chondrules. About 80% of the metal has been destroyed by rusting, whereas most troilite remains. Geochemistry: (A. Tomkins, Monash) Microprobe analyses: olivine Fa18.6-20.6, mean Fa19.46, std=0.67, n=9; Low-Ca pyroxene Fs16.5-17.8, mean Fs17.28, std=0.42, n=9. Classification: Ordinary Chondrite (H4, S3, W3) | ||||||||||||||||||||||||||||||||||||||
| Data from: MB108 Table 0 Line 0: |
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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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| References: | Published in Meteoritical Bulletin, no. 108 (2020) Meteorit. Planet. Sci. 55, 1146-1150
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Geography:
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Statistics: This is 1 of 240 approved meteorites from South Australia, Australia (plus 3 unapproved names) (plus 4 impact craters) This is 1 of 717 approved meteorites from Australia (plus 46 unapproved names) (plus 27 impact craters) | ||||||||||||||||||||||||||||||||||||||
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