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Graves Nunataks 06157
Basic information Name: Graves Nunataks 06157
     This is an OFFICIAL meteorite name.
Abbreviation: GRA 06157
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 0.8 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 30(2)  (2007)  Lunar (anorthositic breccia)
Meteoritical Bulletin:  MB 94  (2008)  Lun-A
Recommended:  Lunar (anorth)    [explanation]

This is 1 of 69 approved meteorites classified as Lunar (anorth).   [show all]
Search for other: Lunar meteorites
Comments: Approved 31 Aug 2007
Writeuphelp
Writeup from AMN 30(2):
Sample No.: GRA 06157
Location: Graves Nunataks
Field No.: 17724
Dimensions (cm):   1.0 x 1.0 x 0.5
Weight (g): 0.788
Meteorite Type:

Lunar-Anorth. Breccia



Macroscopic Description: Kathleen McBride
The exterior has no fusion crust and is a gray color with white and cream colored clasts. The interior is a gray matrix with white clasts throughout.

Thin Section (,2) Description: Tim McCoy, Lauren LaCroix and Linda Welzenbach
The section shows a groundmass of comminuted pyroxene, olivine and plagioclase with grain sizes up to 1 mm. One-half of the section exhibits a darkened matrix. Olivine is Fa7-54, pyroxene ranges from Fs19-66Wo2-45 (Fe/Mn ~ 60), and plagioclase An94-97. The meteorite is lunar, probably an anorthositic regolith breccia.



Thin Section Images

Plane-Polarized
Light GRA 06157
Cross Polarized Light
GRA 06157
GRA06157 - Plane-Polarized Light GRA06157 - Cross Polarized Light



Lab Images

GRA 06157

Data from:
  MB94
  Table 4
  Line 8:
Mass (g):0.788
Class:Lun-A
Weathering grade:A/B
Fayalite (mol%):7-54
Ferrosilite (mol%):19-66
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 30(2) (2007), JSC, Houston
Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
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Photos:
CreditPhotos
Photographs from AMN:
JSC A photo is in the write-up above
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 33930 approved meteorites from Antarctica (plus 6798 unapproved names)

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