Sample Petrographic Description
Sample Number | MIL 13065 |
Newsletter | 40,1 |
Location | Miller Range |
Field Number | 21140 |
Dimensions (cm) | 0.7 x 1.0 x 0.5 |
Weight (g) | 0.11 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-5;Ferrosilite (mol%): 2-7 | |
Weathering | |
A/B | |
Fracturing | |
A | |
Macroscopic Description - Cecilia Satterwhite, Tim McCoy | |
98% of the exterior of this carbonaceous chondrite has black fusion crust, one surface is frothy. The meteorite exhibits a black interior. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The section consists of a few small (up to 0.5 mm) chondrules, mineral fragments and CAIs set in a black matrix. The matrix is unusually rich in opaque minerals. The entire meteorite is rimmed by a 1.5 mm thick primary fusion crust and a much thinner secondary fusion crust. The entire meteorite may have been thermally altered and oxidized producing the abundant opaques in the interior. Olivine compositions are Fa1-5, and pyroxene is Fs2-7. The meteorite is possibly an atmospherically heated CM2 chondrite. |
Antarctic Meteorite Images for Sample MIL 13065 | ||||
Thin Section Photo(s) : | ||||