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| Yamato 791493 | |||||||||||||||||
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| Basic information | Name: Yamato 791493 This is an OFFICIAL meteorite name. Abbreviation: Y-791493 Observed fall: No Year found: 1979 Country: Antarctica [Collected by National Institute of Polar Research, Japan] Mass:  5.1 g | ||||||||||||||||
| Classification history: |
This is 1 of 91 approved meteorites classified as Lodranite. [show all] Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites | ||||||||||||||||
| Writeup |
Writeup from MN J7(1):
Y-791493, 91-3: Lodranite Y791493 is a unique meteorite similar to Lodran, but it differs from Lodran in that it contains plagioclase. Y-791493 consists of small spinel, large euhedral olivine and orthopyroxene, anhedral clinopyroxene, metallic iron-nickel, troilite, plagioclase, and merrillite. Orthopyroxene and clinopyroxene show compositional zoning formed during cooling. The composition of spinel shows a strong size dependence due to differences in crystallization and in subsolidus equilibration (Mg and Fe). | ||||||||||||||||
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| References: | Published in Meteorites news : Japanese collection of Antarctic meteorites / Meteorites news : Japanese collection of Antarctic meteorites ,7(1),1-94 (1998-06) Never published in the Meteoritical Bulletin
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Geography:
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Statistics: This is 1 of 44048 approved meteorites from Antarctica (plus 3802 unapproved names) | ||||||||||||||||
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