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Larkman Nunatak 06638
Basic information Name: Larkman Nunatak 06638
     This is an OFFICIAL meteorite name.
Abbreviation: LAR 06638
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 5.3 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 30(2)  (2007)  Lunar (anorthositic breccia)
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.: LAR 06638
Location: Larkman Nunatak
Field No.: 19362
Dimensions (cm):   2.5 x 2.0 x 0.75
Weight (g): 5.293
Meteorite Type:

Lunar-Anorth. Breccia



Macroscopic Description: Kathleen McBride
The bottom exterior surface has black fusion crust, while the top has a lighter brown crust. Polygonal fractures are present. The gray and white matrix has a sharp line where matrix becomes black with white inclusions.

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. Clasts up to 2 mm include basalts, granulites and anorthosites. One-half of the section exhibits a darkened matrix. Olivine is Fa28-33, pyroxene ranges from Fs27-39Wo3-12 (Fe/Mn ~ 60), and plagioclase An93-98. The meteorite is lunar, probably an anorthositic regolith breccia.



Thin Section Images

Plane-Polarized
Light LAR 06638
Cross Polarized Light
LAR 06638
LAR06638 - Plane-Polarized Light LAR06638 - Cross Polarized Light



Lab Images

LAR 06638

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)
Find references in NASA ADS:
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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 33933 approved meteorites from Antarctica (plus 6798 unapproved names)

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