Sample Petrographic Description
Sample Number | MIL 13269 |
Newsletter | 40,1 |
Location | Miller Range |
Field Number | 22295 |
Dimensions (cm) | 0.9 x 1.2 x 0.8 |
Weight (g) | 1.22 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-47;Ferrosilite (mol%): 1-12 | |
Weathering | |
Ae | |
Fracturing | |
B/C | |
Macroscopic Description - Rachel Funk | |
Black fractured fusion crust covers 30% of the exterior surface. Some fractures penetrate the interior and minor evaporites are visible. The interior has a black matrix with white and gray inclusions/chondrules. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The section consists of a few small (up to 0.5 mm) chondrules, mineral grains and CAIs set in a black matrix. Rare metal and sulfide grains are present. Olivine compositions are Fa1-47, orthopyroxene is Fs1-12. Aqueous alteration of the matrix is substantial, but the chondrules are only modestly altered. The meteorite is a CM2 chondrite. |
Antarctic Meteorite Images for Sample MIL 13269 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 13269 | ||||
Thin Section Photo(s) : | ||||