Sample Petrographic Description
Sample Number | GRO 17169 |
Newsletter | 41,2 |
Location | Grosvenor Mountains |
Field Number | 25798 |
Dimensions (cm) | 5.4 x 4.4 x 2.5 |
Weight (g) | 78.96 |
Original Classification | CK4 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Ferrosilite (mol%): 11-15 | |
Weathering | |
A/B | |
Fracturing | |
A/B | |
Macroscopic Description - Cecilia Satterwhite | |
The exterior is 85% covered with black/brown fractured fusion crust. Some gray matrix is visible and is pitted and weathered in areas. The interior is a gray matrix with mm sized light, dark and weathered inclusions and minor oxidation. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The section consists of large (up to 2 mm), well-defined chondrules in a matrix of finer-grained silicates, sulfides and very abundant magnetite. The meteorite is little weathered, but extensively shock blackened. Silicates are homogeneous. Olivine is Fa33 and orthopyroxene is Fs11-15. The meteorite is a CK4 chondrite. |
Antarctic Meteorite Images for Sample GRO 17169 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample GRO 17169 | ||||
Thin Section Photo(s) : | ||||