Sample Petrographic Description
Sample Number | GRA 98109 |
Newsletter | 23,1 |
Location | Graves Nunataks |
Field Number | 11852 |
Dimensions (cm) | 2.0 x 1.5 x 1.0 |
Weight (g) | 7.34 |
Original Classification | L5 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 25;Ferrosilite (mol%): 21 | |
Weathering | |
C | |
Fracturing | |
C | |
Macroscopic Description - Kathleen McBride | |
This meteorite has black patches of fusion crust over 40% of its exterior surface. It is mostly rusty and friable with evaporites. The interior shows mm sized gray and rusty chondrules. | |
Thin Section Description (,2) - Tim McCoy | |
This L5 chondrite (Fa25, Fs21) is brecciated with light clasts up to 0.5 cm in diameter in a shock-blackened matrix. |
Antarctic Meteorite Images for Sample GRA 98109 | ||||
Thin Section Photo(s) : | ||||