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Graves Nunataks 98032
Basic information Name: Graves Nunataks 98032
     This is an OFFICIAL meteorite name.
Abbreviation: GRA 98032
Observed fall: No
Year found: 1998
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1700 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Ureilite
Antarctic Meteorite Newsletter:  AMN 23(1)  (2000)  Ureilite
Meteoritical Bulletin:  MB 84  (2000)  Howardite
MetBase:  v. 7.1  (2006)  Ureilite
Recommended:  Ureilite    [explanation]

This is 1 of 510 approved meteorites classified as Ureilite.   [show all]
Search for other: Achondrites, Ureilites
Writeuphelp
Writeup from AMN 23(1):
Sample No.: GRA 98032
Location: Graves Nunataks
Dimensions (cm):   12.0x9.0x10
Weight (g): 1699.500
Meteorite Type: Ureilite
    gra98032

Macroscopic Description: Kathleen McBride
Brown/black, patchy fusion crust covers approximately 50% of the surface area.  The interior of the meteorite is rusty-gray in color with numerous inclusions and metal-like grains and veins.

Thin Section (, 2) Description: Tim McCoy
GRA98032 The section consists of an aggregate of large olivine and pyroxene grains up to 2 mm across.  Individual olivine grains are rimmed by carbon-rich material containing traces of metal. The olivines have been mosaicized by shock.  Olivines have cores of Fa25, with rims reduced to Fa14.  Pigeonite (Fs16-20, Wo4-9) exhibits a blotchy appearance. A single subcalcic augite grain had a composition of Fs15Wo26.  The meteorite is a ureilite.

Data from:
  MB84
  Table A1
  Line 33:
Origin or pseudonym:Lower Central
Mass (g):1699.5
Class:How
Weathering grade:C
Fayalite (mol%):14-26
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 23(1) (2000), JSC, Houston
Published in Meteoritical Bulletin, no. 84, MAPS 35, A199-A225 (2000)
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Photos:
CreditPhotos
Photographs from AMN:
Photograph from unknown source A photo is in the write-up above
Photos from the Encyclopedia of Meteorites:
Dr Carlton Allen, JSC-KT, NASA   
Geography:

Antarctica
Coordinates:
     Catalogue of Meteorites:   (86° 43'S, 141° 30'W)
     Recommended::   (86° 43'S, 141° 30'W)

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)
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