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Yamato 982143
Basic information Name: Yamato 982143
     This is an OFFICIAL meteorite name.
Abbreviation: Y-982143
Observed fall: No
Year found: 1998
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass:help 28.5 g
Classification
  history:
NIPR Newsletter:  MN 20  (2011)  Ureilite
Meteoritical Bulletin:  MB 99  (2011)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 629 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 26 May 2011
Writeuphelp
Writeup from MN J20:
Y982143
Ureilite

The section shows an aggregate of pyroxene and olivine (~1 mm) with dark interstitial materials. Pyroxene typically has fine polysynthetic twinning (~several μm apart). Very fine opaque droplets occur along healed cracks in mafic minerals. Compositions of pyroxenes are Wo4.5-4.7Fs10-12.9 and Wo36.7-37.3Fs5.8-7.4, those of olivine are Fa10.6-13.3.
Data from:
  MB99
  Table 0
  Line 0:
Date:1998
Mass (g):28.50
Pieces:1
Class:Ureilite
Ferrosilite (mol%):11.3 (10.0-12.9)
Classifier:A. Yamaguchi
Type spec mass (g):28.50
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)
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 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 43856 approved meteorites from Antarctica (plus 3802 unapproved names)

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