Sample Petrographic Description
Sample Number | GRA 06131 |
Newsletter | 30,2 |
Location | Graves Nunataks |
Field Number | 18052 |
Dimensions (cm) | 2.5 x 1.5 x 3.0 |
Weight (g) | 7.27 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-23 | |
Weathering | |
B/C | |
Fracturing | |
B/C | |
Macroscopic Description - Kathleen McBride | |
The exterior is brown/black with fractures. The interior is black and charcoal gray with an oxidation rind. | |
Thin Section Description (,2) - Tim McCoy, Lauren LaCroix, Linda Welzenbach | |
The section consists of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in an extensively-altered, black matrix. Metal and sulfide grains are present. Olivine compositions are Fa1-23. The meteorite is a CM2 chondrite. |
Antarctic Meteorite Images for Sample GRA 06131 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample GRA 06131 | ||||
Thin Section Photo(s) : | ||||