Sample Petrographic Description
| Sample Number | GRO 06059 |
| Newsletter | 31,1 |
| Location | Grosvenor Mountains |
| Field Number | 19430 |
| Dimensions (cm) | 7.0 x 6.5 x 5.0 |
| Weight (g) | 433.50 |
| Original Classification | Eucrite (Brecciated) |
| Mineral Composition (%Fa & %Fs) | |
| Ferrosilite (mol%): 29-58 | |
| Weathering | |
| A | |
| Fracturing | |
| A/B | |
| 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 Description (,2) - Tim McCoy, Cari Corrigan, Linda Welzenbach | |
| 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. | |
| Antarctic Meteorite Images for Sample GRO 06059 | ||||
| Field Photo(s) : | ||||
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| Field photo image(s) courtesy of the ANSMET (ANtarctic Search for METeorites) Program, Case Western Reserve University and the University of Utah | ||||
| Antarctic Meteorite Images for Sample GRO 06059 | ||||
| Lab Photo(s) : | ||||
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| Antarctic Meteorite Images for Sample GRO 06059 | ||||
| Thin Section Photo(s) : | ||||
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| References for Sample GRO06059 | |
| Harvey, R.P., Schutt, J., and Karner, J., 2015, Fieldwork Methods of the U.S. Antarctic Search for Meteorites Program. In Righter, K., Corrigan, C.M., McCoy, T.J., and Harvey, R.P. Meteorites: A Pictorial Guide to the Collection, First Edition , AGU Wiley, , pp. 23-41 . | |
| RELAB, , Reflectance Experiment Lab , catalogue of samples, . | |