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Yamato 981582
Basic information Name: Yamato 981582
     This is an OFFICIAL meteorite name.
Abbreviation: Y-981582
Observed fall: No
Year found: 1998
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass:help 5.9 g
Classification
  history:
NIPR Newsletter:  MN 19  (2010)  Diogenite
Meteoritical Bulletin:  MB 98  (2010)  Diogenite
Recommended:  Diogenite    [explanation]

This is 1 of 465 approved meteorites classified as Diogenite.   [show all]
Search for other: Achondrites, Diogenites, and HED achondrites
Comments: Approved 20 Jun 2010
Writeuphelp
Writeup from MN J19:

Yamato 981582 (Y 981582)

Antarctica

Found: 1998

Classification: HED achondrite (Diogenite)

Petrography: The section shows a very fine grained (20-100 μm) of laths and wedges of orthopyroxene whose longer axis are broadly aligned. Minute (a few μm) grains of Fe metals and troilite occur.

Geochemistry: Pyroxene compositions are En71-76Wo2 (FeO/MnO ~30).

Classification: The similar unusual textures and mineral chemistry indicate that Y981247 and Y981582 are paired. These meteorites are diogenites.

Data from:
  MB98
  Table 2
  Line 722:
Mass (g):5.88
Class:Diogenite
Weathering grade:
Fayalite (mol%):
Ferrosilite (mol%):24.0 (22.3-25.0)
Classifier:NIPR
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 ,19, (2010-03)
Published in Meteoritical Bulletin, no. 98, MAPS 45, 1530-1551 (2010)
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Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 40849 approved meteorites from Antarctica (plus 4494 unapproved names)

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