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Yamato 000668
Basic information Name: Yamato 000668
     This is an OFFICIAL meteorite name.
Abbreviation: Y-000668
Observed fall: No
Year found: 2000
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass:help 19.5 g
Classification
  history:
NIPR Newsletter:  MN 22  (2013)  Eucrite, br
Meteoritical Bulletin:  MB 102  (2013)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 237 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 12 Dec 2013
Writeuphelp
Writeup from MN J22:

Yamato 000668 (Y 000668)

Antarctica

Found: 2000

Classification: HED achondrite (Eucrite, brecciated)

Petrography: The PTS is composed of fragments of large pyroxenes and plagioclases (aggregate) set in a dark schlieren matrix. Most pyroxenes show a mosaic extinction, and some are partly shock-recrystallized. Plagioclase is highly deformed, and shows a fan-spherulitic texture. Compositions of pyroxene are Fs31.3-38.5 (average: Fs34.7) and those of plagioclase are An85.9-91.5 (average: An89.0). This meteorite is a eucrite.

Data from:
  MB102
  Table 0
  Line 0:
Date:2000
Mass (g):19.50
Pieces:1
Class:Eucrite-br
Ferrosilite (mol%):34.7 (31.3-38.5)
Classifier:A. Yamaguchi, S. Ozawa , and H. Kojima, NIPR; M. Kimura, Ibaraki
Type spec mass (g):19.50
Type spec location:NIPR
Main mass:NIPR
Comments:Melt breccia; submitted by A. Yamaguchi
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)
Ibaraki: Department of Materials and Biological Sciences, Institute of Astrophysics and Planetary Science, Ibaraki University, 2-1-1 Bunkyo, Mito 310-8512, Japan (institutional address; updated 27 Feb 2011)
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 ,22,1-32 (2013-11)
Published in Meteoritical Bulletin, no. 102, MAPS 50, 1662, September 2015
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Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 44547 approved meteorites from Antarctica (plus 3802 unapproved names)
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Revision
  history:
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