Sample Petrographic Description
Sample Number | MIL 11231 |
Newsletter | 37,2 |
Location | Miller Range |
Field Number | 23239 |
Dimensions (cm) | 1.5 x 1.5 x 0.8 |
Weight (g) | 3.71 |
Original Classification | CR2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-2.4;Ferrosilite (mol%): 2 | |
Weathering | |
B | |
Fracturing | |
A/B | |
Macroscopic Description - Cecilia Satterwhite | |
Black/brown fusion crust covers 95% of the exterior which is fractured and frothy in areas. The interior is a black matrix with visible chondrules and inclusions, some lighter than the matrix. Some rusty areas are visible. | |
Thin Section Description (,2) - Cari Corrigan, Linda Welzenbach, Devin Schrader, Pamela Salyer | |
The section exhibits a variety of chondrule sizes (from 200 microns up to 3 mm), well-defined metal-rich chondrules, and CAIs in a dark matrix of FeO-rich phyllosilicate. Pyroxenes are polysynthetically twinned. Olivine compositions are Fa0-2, and pyroxenes are Fs2Wo1. The meteorite is probably a CR2 chondrite. |
Antarctic Meteorite Images for Sample MIL 11231 | ||||
Thin Section Photo(s) : | ||||