|Basic information||Name: Yamato 000593|
This is an OFFICIAL meteorite name.
Observed fall: No
Year found: 2000
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass: 13.71 kg
This is 1 of 14 approved meteorites classified as Martian (nakhlite). [show all]
Search for other: Martian meteorites
Writeup from MN J10(2):
Sample Name: Yamato 000593
Location: JARE IV Nunataks
Dimensions (cm): 29 x 22 x 16
Weight (g): 13713
Meteorite Type: Nakhlite
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.
|References:||Published in Meteorite Newsletter 10(2) (2001), NIPR, Tokyo|
Never published in the Meteoritical Bulletin
This is 1 of 33933 approved meteorites from Antarctica (plus 6798 unapproved names)
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