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| Biduna Blowhole 002 | |||||||||||||||||||||||||||||||||||||||
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| Basic information | Name: Biduna Blowhole 002 This is an OFFICIAL meteorite name. Abbreviation: There is no official abbreviation for this meteorite. Observed fall: No Year found: 2011 Country: Australia Mass:  13 g | ||||||||||||||||||||||||||||||||||||||
| Classification history: |
This is 1 of 2008 approved meteorites (plus 4 unapproved names) classified as L4. [show all] Search for other: L chondrites, L chondrites (type 4-7), Ordinary chondrites, and Ordinary chondrites (type 4-7) | ||||||||||||||||||||||||||||||||||||||
| Comments: | Approved 23 Feb 2012 | ||||||||||||||||||||||||||||||||||||||
| Writeup |
Writeup from MB 100:
Biduna Blowhole 002 31°01’58.7"S, 131°17’07.7"E South Australia, Australia Found: 06 Apr 2011 Classification: Ordinary chondrite (L4) History: Single piece found by A. Tomkins on the Nullarbor Plain. Physical characteristics: A well-rounded, dark-brown stone with ~60% remnant fusion crust and a single broken face. Petrography: (E. Mare, Monash) Sample shows well-defined chondrules (0.5 to 2mm in diameter) and recrystallized matrix. Chondrule types include RP, POP, PP, BO and PO. Fe-Ni metal grains (5%) are 100 μm on average and unevenly distributed. Troilite grains (4%) to 200 μm. Metal and troilite have been partly replaced by oxides, however only to a limited extent, with ~3% oxides in this meteorite. Olivine grains show weak undulose extinction Geochemistry: (E. Mare, Monash) Microprobe analyses show that olivine and pyroxene compositions are uniform: olivine Fa25.0-25.4, mean=25.22 mol%, std=0.21, n=4; Low-Ca pyroxene Fs21.5-21.9, mean=21.67 mol%, std=0.19, n=4. Classification: Ordinary chondrite (L4, S2, W2) | ||||||||||||||||||||||||||||||||||||||
| Data from: MB100 Table 1 Line 32: |
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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 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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