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Graves Nunataks 98030
Basic information Name: Graves Nunataks 98030
     This is an OFFICIAL meteorite name.
Abbreviation: GRA 98030
Observed fall: No
Year found: 1998
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 32.6 g
Classification
  history:
NHM Catalogue:  5th Edition  (2000)  Howardite
Antarctic Meteorite Newsletter:  AMN 23(1)  (2000)  Howardite
Meteoritical Bulletin:  MB 84  (2000)  Howardite
MetBase:  v. 7.1  (2006)  Howardite
Recommended:  Howardite    [explanation]

This is 1 of 366 approved meteorites classified as Howardite.   [show all]
Search for other: Achondrites, HED achondrites, and Howardites
Writeuphelp
Writeup from AMN 23(1):
Sample No.: GRA 98030
Location: Graves Nunataks
Dimensions (cm):   3.5x2.5x2.0
Weight (g): 32.622
Meteorite Type: Howardite
     GRA98030 image
GRA 98030
     GRA98030
GRA 98030

Macroscopic Description: Kathleen McBride
Dark brown/black fusion crust covers approximately 40% of the surface of the meteorite.  The interior reveals a tan weathering rind.  The matrix is gray with black, white, and yellowish colored inclusions, angular to sub-angular in shape.  The rock is soft and powdery.

Thin Section (, 2) Description: Tim McCoy
GRA98030 The section shows a groundmass of comminuted pyroxene and plagioclase (up to 0.5 mm) with fine- to coarse-grained basaltic clasts ranging up to 5 mm.  Most of the pyroxene is orthopyroxene with compositions ranging from Fs21-52 Wo1-4 (most Fs20-30), a single augite of Fs19Wo 41 and an olivine of Fa12.  The meteorite is a howardite.

Data from:
  MB84
  Table A1
  Line 31:
Origin or pseudonym:Lower Central
Mass (g):32.6
Class:How
Weathering grade:A/B
Fayalite (mol%):12
Ferrosilite (mol%):21-52
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 38674 approved meteorites from Antarctica (plus 5051 unapproved names)
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