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Yamato 981688
Basic information Name: Yamato 981688
     This is an OFFICIAL meteorite name.
Abbreviation: Y-981688
Observed fall: No
Year found: 1998
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass:help 48.3 g
Classification
  history:
NIPR Newsletter:  MN 20  (2011)  Ureilite
Meteoritical Bulletin:  MB 99  (2011)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 515 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 26 May 2011
Writeuphelp
Writeup from MN J20:
Y981688
Ureilite

The section is an aggregate of olivine and pyroxene (up to ~3 mm) with dark interstitial materials. Olivine grains have dark rims (200-500 μm thick) due to the presence of minute opaque minerals (Fe metal and troilite). Elongated graphites (hundreds μm long and several tens μm thick) occur sparsely. Compositions of olivine are Fa1.7-21.5.
Data from:
  MB99
  Table 0
  Line 0:
Date:1998
Mass (g):48.26
Pieces:1
Class:Ureilite
Fayalite (mol%):17.0 (1.7-21.5)
Classifier:A. Yamaguchi
Type spec mass (g):48.26
Type spec location:NIPR
Main mass:NIPR
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)
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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 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 39173 approved meteorites from Antarctica (plus 5051 unapproved names)

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