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Graves Nunataks 06189
Basic information Name: Graves Nunataks 06189
     This is an OFFICIAL meteorite name.
Abbreviation: GRA 06189
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 2.9 g
Classification
  history:
Antarctic Meteorite Newsletter:  AMN 30(2)  (2007)  Eucrite-unbr
Meteoritical Bulletin:  MB 94  (2008)  Eu “ub ”
Recommended:  Eucrite-unbr    [explanation]

This is 1 of 89 approved meteorites classified as Eucrite-unbr.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 31 Aug 2007
Writeuphelp
Writeup from AMN 30(2):
Sample No.: GRA 06189
Location: Graves Nunataks
Field No.: 17753
Dimensions (cm):   1.5 x 1.5 x 1.0
Weight (g): 2.941
Meteorite Type:

Eucrite (Unbrecciated)



Macroscopic Description: Kathleen McBride
Shiny black fusion crust with fine "wrinkles" covers the exterior of this achondrite. The interior matrix ranges from dark to light gray with patches of yellow brown areas.

Thin Section (,2) Description: Tim McCoy, Lauren LaCroix and Linda Welzenbach
The section consists of a coarse-grained unbrecciated gabbro composed of pyroxene and plagioclase with grain sizes reaching 3 mm. Shock effects are pervasive, including mosaicism in both pyroxene and plagioclase. Silicates are homogeneous with orthopyroxene of Fs60Wo2, clinopyroxene of Fs26Wo43 (Fe/Mn~30) and plagioclase of An90. The meteorite is an unbrecciated eucrite.



Thin Section Images

Plane-Polarized
Light GRA 06189
Cross Polarized Light
GRA 06189
GRA06189 - Plane-Polarized Light GRA06189 - Cross Polarized Light



Lab Images

GRA 06189

Data from:
  MB94
  Table 4
  Line 11:
Mass (g):2.941
Class:Eu “ub ”
Weathering grade:B
Ferrosilite (mol%):60
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 38937 approved meteorites from Antarctica (plus 5051 unapproved names)

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