Sample Petrographic Description
Sample Number | GRO 17060 |
Newsletter | 44,1 |
Location | Grosvenor Mountains |
Field Number | 25638 |
Dimensions (cm) | 6.6 x 5.0 x 4.5 |
Weight (g) | 216.10 |
Original Classification | CR2 CHONDRITE |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1;Ferrosilite (mol%): 1-14 | |
Weathering | |
B | |
Fracturing | |
A/B | |
Macroscopic Description - Cecilia Satterwhite | |
The exterior has 85% black/brown fusion crust with fractures and oxidation haloes. Some areas are rusty. The interior is a black matrix with white and weathered specks, minor oxidation throughout. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The section exhibits mm-sized, well-defined, metal rich chondrules and CAI’s in a dark matrix of phyllosilicate. Weathering is locally extensive. Silicates are unequilibrated; one olivine analysis was Fa1, and pyroxenes formed two groupings at averages of Fs1Wo0.2 and Fs12Wo1. The meteorite is a CR2 chondrite. |
Antarctic Meteorite Images for Sample GRO 17060 | ||||
Thin Section Photo(s) : | ||||