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Yamato 981725
Basic information Name: Yamato 981725
     This is an OFFICIAL meteorite name.
Abbreviation: Y-981725
Observed fall: No
Year found: 1998
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass:help 63 g
Classification
  history:
NIPR Newsletter:  MN 20  (2011)  Lodranite
Meteoritical Bulletin:  MB 99  (2011)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 82 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Comments: Approved 26 May 2011
Writeuphelp
Writeup from MN J20:
Y981725
Lodranite

The section is composed of granular olivine, pyroxene, and minor plagioclase. Large aggregate of Fe-metal and troilite occur. Grain sizes are typically 0.3-0.5 mm with a few large grains up to ~3 mm. Many olivine grains show dusty appearance. Mineral compositions are olivine: Fa8.5-9.3; and pyroxene: Fs11.0-12.9.

Writeup from MN J21:

Yamato 981725

Geochemistry: Oxygen isotope composition (R. Clayton and T. Mayeda, UChi): δ18O = 3.57, δ17O = 0.79, Δ17O = -1.07

Data from:
  MB99
  Table 0
  Line 0:
Date:1998
Mass (g):62.99
Pieces:1
Class:Lodranite
Fayalite (mol%):9.0 (8.5-9.3)
Ferrosilite (mol%):12.2 (11.0-12.9)
Classifier:A. Yamaguchi
Type spec mass (g):62.99
Type spec location:NIPR
Main mass:NIPR
Plots: O isotopes:  
Institutions
   and collections
NIPR: Antarctic Meteorite Research Center, National Institute of Polar Research, 10-3 Midori-cho, Tachikawa, Tokyo 190-8518, Japan; Website (institutional address; updated 9 Dec 2013)
Catalogs:
Search for this meteorite in the NIPR database (Japan):   
References: Published in Meteorite newsletter : Japanese collection of Antarctic meteorites /Meteorite newsletter : Japanese collection of Antarctic meteorites ,20,1-19 (2011-03)
Published in Meteorite newsletter : Japanese collection of Antarctic meteorites /Meteorite newsletter : Japanese collection of Antarctic meteorites ,21,1-33 (2012-06)
Published in Meteoritical Bulletin, No. 99, April 2012, MAPS 47, E1-E52 (2012) [published online only]
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Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)

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