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Yamato 982004
Basic information Name: Yamato 982004
     This is an OFFICIAL meteorite name.
Abbreviation: Y-982004
Observed fall: No
Year found: 1998
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass:help 6.2 g
Classification
  history:
NIPR Newsletter:  MN 20  (2011)  Acapulcoite
Meteoritical Bulletin:  MB 99  (2011)  Acapulcoite
Recommended:  Acapulcoite    [explanation]

This is 1 of 91 approved meteorites classified as Acapulcoite.   [show all]
Search for other: Acapulcoite-lodranite family, Acapulcoites, and Primitive achondrites
Comments: Approved 26 May 2011
Writeuphelp
Writeup from MN J20:
Y982003 and Y982004
Acapulcoite

One third of the section is Fe-metal, and the other is silicate. Silicate portion of these sections shows a granular texture (~100-300 μm) composed of olivine, pyroxene, and minor plagioclase. Silicate minerals in many cases contain fine droplets of troilite. Mineral compositions are olivine: Fa7.4-9.9; pyroxene Fs7.1-10.1; plagioclase (An14.6-16.2).
Data from:
  MB99
  Table 0
  Line 0:
Date:1998
Mass (g):6.17
Pieces:1
Class:Acapulcoite
Fayalite (mol%):8.6 (8.0-9.4)
Ferrosilite (mol%):8.4 (6.8-9.9)
Classifier:A. Yamaguchi
Type spec mass (g):6.17
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 43857 approved meteorites from Antarctica (plus 3802 unapproved names)

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