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Yamato 791497
Basic information Name: Yamato 791497
     This is an OFFICIAL meteorite name.
Abbreviation: Y-791497
Observed fall: No
Year found: 1979
Country: Antarctica [Collected by National Institute of Polar Research, Japan]
Mass:help 7 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Howardite
NIPR Catalogue:  2000 Edition  (2000)  Howardite
MetBase:  v. 7.1  (2006)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 398 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Writeuphelp
Writeup from MN J9(1):

Y-791497, 51-1

The section shows a comminuted clastic matrix, composed of angular fragments (grains up to 1.2 mm) of pyroxene and plagioclase. Trace amounts of black materials (possibly, glassy clasts and metal/troilite) are present as small (up to 0.4 mm in size) grains. One orthopyroxene fragment contains large, irregular to tabular augite (up to 0.1 mm in size). Pyroxene compositions scatter widely from Ca2Fe17-Ca21Fe65. Plagioclase compositions are An89-96; few K-rich grains are present up to An95Ab6. The meteorite is a howardite.

Catalogs:
Search for this meteorite in the NIPR database (Japan):   
References: Published in Meteorite news : Japanese collection of Antarctic meteorites /Meteorite news : Japanese collection of Antarctic meteorites ,9(1),1-58 (2000-06)
Never published in the Meteoritical Bulletin
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Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (71° 30'S, 35° 40'E)
     Recommended::   (71° 30'S, 35° 40'E)

Statistics:
     This is 1 of 40759 approved meteorites from Antarctica (plus 4494 unapproved names)
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