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Grosvenor Mountains 06059
Basic information Name: Grosvenor Mountains 06059
     This is an OFFICIAL meteorite name.
Abbreviation: GRO 06059
Observed fall: No
Year found: 2006
Country: Antarctica [Collected by US Antarctic Search for Meteorites program (ANSMET)]
Mass:help 434 g
Antarctic Meteorite Newsletter:  AMN 31(1)  (2008)  Eucrite-br
Recommended:  Eucrite-br    [explanation]

This is 1 of 191 approved meteorites classified as Eucrite-br.   [show all]
Search for other: Achondrites, Eucrites, and HED achondrites
Comments: Approved 17 Feb 2008
Writeup from AMN 31(1):
Sample No.: GRO 06059
Location: Grosvenor Mountains
Field No.: 19430
Dimensions (cm):   7.0 x 6.5 x 5.0
Weight (g): 433.5
Meteorite Type:

Eucrite (Brecciated)


Macroscopic Description: Kathleen McBride
90% of the exterior has shiny, black fusion crust with thin “ripples”. The interior is a light gray matrix with gray, black, and white angular clasts. A few rust halos are visible.


Thin Section (,2) Description: Tim McCoy, Linda Welzenbach and Cari Corrigan
This meteorite is dominated by fine-grained basaltic material which occurs as both the host and clasts. Occasional coarser-grained clasts, with grain sizes up to 2 mm, are observed. Pyroxene exhibits a range of compositions from orthopyroxene of Fs58Wo3 to augite of Fs29Wo41. Single pyroxene grains often exhibit lamellae of orthopyroxene and augite. Plagioclase is An90Or0.5. The Fe/Mn ratio of the pyroxene is ~30. The meteorite is a brecciated eucrite.

Thin Section Images

Light GRO 06059
Light GRO 06059
GRO 06059 - Plane-Polarized
GRO 06059 - Cross-Polarized

Lab Images

East View
GRO 06059
North View
GRO 06059
South View
GRO 06059
Splits View
GRO 06059
GRO 06059  - East View
GRO 06059  - North View
GRO 06059  - South View
GRO 06059  - Splits View

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)
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     This is 1 of 40773 approved meteorites from Antarctica (plus 4570 unapproved names)

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