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Yamato 981810
Basic information Name: Yamato 981810
     This is an OFFICIAL meteorite name.
Abbreviation: Y-981810
Observed fall: No
Year found: 1998
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass:help 137.8 g
Classification
  history:
NIPR Newsletter:  MN 20  (2011)  Ureilite
Meteoritical Bulletin:  MB 99  (2011)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 658 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Comments: Approved 26 May 2011
Writeuphelp
Writeup from MN J20:
Y981810
Ureilite

The section displays a coarse-grained (up to 2 mm in the longest dimension) granular texture composed of olivine with minor pyroxene. Some olivine granules are poikilitically enclosed by large pyroxene grains. Many grains have dusty rims (<100 μm thick). Graphite laths (~100-200 x ~10-20 μm) occur along boundaries and in some mafic minerals. Olivine shows a weak mottled extinction. Olivine compositions are Fa17.5-24.5.
Data from:
  MB99
  Table 0
  Line 0:
Date:1998
Mass (g):137.80
Pieces:1
Class:Ureilite
Fayalite (mol%):23.1 (17.5-24.5)
Classifier:A. Yamaguchi
Type spec mass (g):137.80
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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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 44400 approved meteorites from Antarctica (plus 3802 unapproved names)
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Revision
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