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Graves Nunataks 95209
Basic information Name: Graves Nunataks 95209
     This is an OFFICIAL meteorite name.
Abbreviation: GRA 95209
Observed fall: No
Year found: 1995
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 949 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 20(1)  (1997)  Lodranite
Meteoritical Bulletin:  MB 82  (1998)  Lodranite
NHM Catalogue:  5th Edition  (2000)  Lodranite
MetBase:  v. 7.1  (2006)  Lodranite
Recommended:  Lodranite    [explanation]

This is 1 of 79 approved meteorites classified as Lodranite.   [show all]
Search for other: Acapulcoite-lodranite family, Lodranites, and Primitive achondrites
Writeuphelp
Writeup from AMN 20(1):
Sample No.:GRA95209
Location:Graves Nunataks
Dimensions (cm):10.5 x 8.0 x 5.0
Weight (g):948.8
Meteorite Type:Lodranite
GRA95209     Other images of GRA95209

Macroscopic Description: Kathleen McBride
The exterior of this meteorite has a thin, dark brown, melted-appearing fusion crust. One fracture runs across one surface and evaporite deposits are visible on the edge of another surface. Chondrules on the surface appear lighter than the matrix. The interior of the meteorite is very rusty. This meteorite was very coherent and had to be pried apart along complete fractures during chipping. Metal grains are numerous including areas of concentrated metals and metal sulfides, the largest of this being 1 cm in diameter. Clasts are present as well including some as large as 1 cm.

Thin Section (,7) Description: Brian Mason
The section shows an equigranular aggregate (grains averaging 0.3 mm) of subequal amounts of nickel-iron, olivine, and pyroxene, with a little plagioclase. A minor amount of brown limonitic staining pervades the section. Microprobe analyses give the following mineral compositions; olivine, Fa7; orthopyroxene, Wo3Fs7; clinopyroxene, Wo41Fs5 ; plagioclase, An19. The meteorite is classified as a lodranite.

Revised Hand Sample Description

Data from:
  MB82
  Table A1
  Line 110:
Origin or pseudonym:Lower West Graves
Mass (g):948.8
Class:Lod
Weathering grade:B
Fayalite (mol%):7
Ferrosilite (mol%):7
Catalogs:
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References: Published in Antarctic Meteorite Newsletter 20(1) (1997), JSC, Houston
Published in Meteoritical Bulletin, no. 82, MAPS 33, A221-A240 (1998)
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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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