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Larkman Nunatak 06318
Basic information Name: Larkman Nunatak 06318
     This is an OFFICIAL meteorite name.
Abbreviation: LAR 06318
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 25 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 31(1)  (2008)  CM2
Meteoritical Bulletin:  MB 94  (2008)  CM2
Recommended:  CM2    [explanation]

This is 1 of 541 approved meteorites classified as CM2.   [show all]
Search for other: Carbonaceous chondrites, Carbonaceous chondrites (type 2), CM chondrites, and CM-CO clan chondrites
Comments: Approved 17 Feb 2008
Writeuphelp
Writeup from AMN 31(1):
Sample No.: LAR 06318
Location: Larkman Nunatak
Field No.: 19596
Dimensions (cm):   4.0 x 3.0 x 2.0
Weight (g): 25.035
Meteorite Type:

CM2 Chondrite

Pairing:


Macroscopic Description: Kathleen McBride
The exterior of this meteorite has 40% purplish patches of fusion crust with polygonal fractures. The interior is dark gray to black with light colored, gray to tan inclusions and chondrules.

 

Thin Section (,2) Description: Tim McCoy, Linda Welzenbach and Cari Corrigan
The section consists of abundant small chondrules (up to 1 mm), chondrule fragments, mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0-54 and orthopyroxene is Fs1-4. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite.


Thin Section Images

Plane-Polarized
Light LAR 06318
LAR 06318 - Plane-Polarized



Lab Images

North View
LAR 06318
South View
LAR 06318
Splits View
LAR 06318
LAR 06318 - North View
LAR 06318 - South View
LAR 06318 - Splits View

Data from:
  MB94
  Table 4
  Line 777:
Mass (g):25
Class:CM2
Weathering grade:A/B
Fayalite (mol%):0-54
Ferrosilite (mol%):1-4
Catalogs:
Search for this meteorite in the NASA/JSC database (U.S.):   
References: Published in Antarctic Meteorite Newsletter 31(1) (2008), JSC, Houston
Published in Meteoritical Bulletin, no. 94, MAPS 43, 1551-1588 (2008)
Find references in NASA ADS:
Find references in Google Scholar:
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 40129 approved meteorites from Antarctica (plus 4494 unapproved names)

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