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Graves Nunataks 06158
Basic information Name: Graves Nunataks 06158
     This is an OFFICIAL meteorite name.
Abbreviation: GRA 06158
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 1.3 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 31(1)  (2008)  CM2
Meteoritical Bulletin:  MB 94  (2008)  CM2
Recommended:  CM2    [explanation]

This is 1 of 529 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.: GRA 06158
Location: Graves Nunataks
Field No.: 17726
Dimensions (cm):   1.25 x 1.0 x 0.75
Weight (g): 1.333
Meteorite Type:

CM2 Chondrite

Pairing:


Macroscopic Description: Kathleen McBride
75% of the exterior is a rough black fusion crust. The interior is a brown/black matrix with an oxidation rind.

 

Thin Section (,2) Description: Tim McCoy, Linda Welzenbach and Cari Corrigan
The section consists of abundant small chondrules (up to 2 mm), chondrule fragments, mineral grains and CAI’s set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-23 and orthopyroxene is Fs3-4. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite.


Thin Section Images

Plane-Polarized
Light GRA 06158
Cross-Polarized
Light GRA 06158
GRA 06158 - Plane-Polarized
GRA 06158 - Cross-Polarized



Lab Images

North View
GRA 06158
GRA 06158 - North View

Data from:
  MB94
  Table 4
  Line 667:
Mass (g):1.3
Class:CM2
Weathering grade:B/C
Fayalite (mol%):1-23
Ferrosilite (mol%):3-4
Data from:
  MB94
  Table 4
  Line 743:
Mass (g):1.3
Class:CM2
Weathering grade:B/C
Fayalite (mol%):1-23
Ferrosilite (mol%):3-4
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 39173 approved meteorites from Antarctica (plus 5051 unapproved names)

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