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Graves Nunataks 06172
Basic information Name: Graves Nunataks 06172
     This is an OFFICIAL meteorite name.
Abbreviation: GRA 06172
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 21.1 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 30(2)  (2007)  CM2
Meteoritical Bulletin:  MB 94  (2008)  CM2
Recommended:  CM2    [explanation]

This is 1 of 533 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 31 Aug 2007
Writeuphelp
Writeup from AMN 30(2):
Sample No.: GRA 06172
Location: Graves Nunataks
Field No.: 17772
Dimensions (cm):   3.5 x 2.5 x 2.0
Weight (g): 21.069
Meteorite Type:

CM2 Chondrite



Macroscopic Description: Kathleen McBride
50% purplish black fusion crust with polygonal fractures covers the exterior. The exposed interior has a vesicular texture. The interior is a black matrix with light color chondrules

Thin Section (,2) Description: Tim McCoy and Linda Welzenbach
The section consists of a numerous minimally-altered chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-44, orthopyroxene is Fs3. The meteorite is a CM2 chondrite.



Thin Section Images

Plane-Polarized
Light GRA 06172
Cross Polarized Light
GRA 06172
GRA06172 - Plane-Polarized Light GRA06172 - Cross Polarized Light



Lab Images

GRA 06172

Data from:
  MB94
  Table 4
  Line 9:
Mass (g):21.069
Class:CM2
Weathering grade:B
Fayalite (mol%):1-44
Ferrosilite (mol%):3
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:
Find references in Google Scholar:
Photos:
CreditPhotos
Photographs from AMN:
JSC A photo is in the write-up above
Geography:

Antarctica
Coordinates:Unknown.

Statistics:
     This is 1 of 39173 approved meteorites from Antarctica (plus 5051 unapproved names)

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