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| Yamato 000593 | |||||||||||||
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| Basic information | Name: Yamato 000593 This is an OFFICIAL meteorite name. Abbreviation: Y-000593 Observed fall: No Year found: 2000 Country: Antarctica [Collected by National Institute of Polar Research, Japan] Mass:  13.71 kg | ||||||||||||
| Classification history: |
This is 1 of 32 approved meteorites classified as Martian (nakhlite). [show all] Search for other: Martian meteorites | ||||||||||||
| Writeup |
Writeup from MN J10(2):
Sample Name: Yamato 000593 Location: JARE IV Nunataks Dimensions (cm): 29 x 22 x 16 Weight (g): 13713 Weathering: B Fracturing: B Meteorite Type: Nakhlite
Macroscopic description This is a subrounded nearly complete stone with one large dented surface. 60% of the stone is covered by shiny black fusion crust. Exposed interior shows medium-grained granular texture and is dark green in color.
Petrographic Description (Imae N.) The section mainly consists of coarse-grained euhedral and subhedral augite (up to 1 mm x 0.5 mm) showing polysynthetic twinning. Minor amount of olivine (up to 0.5 mm) and magnetite (up to 0.1 mm) also observed. Mesostasis includes radial plagioclase crystals. Pyroxene composition is En20-40Fs22-40Wo38-40. Olivine composition is Fa62-78. Plagioclase is An26-32Ab63-650Or4-8. | ||||||||||||
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| References: | Published in Meteorite newsletter : Japanese collection of Antarctic meteorites /Meteorite newsletter : Japanese collection of Antarctic meteorites ,10(2),1-9 (2001-12) Never published in the Meteoritical Bulletin
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Statistics: This is 1 of 43857 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||
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