Sample Petrographic Description
Sample Number | MIL 15409 |
Newsletter | 42,2 |
Location | Miller Range |
Field Number | 24045 |
Dimensions (cm) | 1.6 x 1.3 x 0.9 |
Weight (g) | 2.38 |
Original Classification | CM2 Chondrite |
Pairing | MIL 15303; MIL 15304; MIL 15408; MIL 15409; MIL 15410; MIL 15419; MIL 15429; MIL 15468; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0.5-40 | |
Weathering | |
Be | |
Fracturing | |
A | |
Macroscopic Description - Cecilia Satterwhite | |
The exterior is covered with 60% fractured black fusion crust, frothy in some areas. Rest of exterior is weathered brown with evaporites. The interior is a black matrix with evaporites, white specks and minor oxidation. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The sections consist of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0.5-51, pyroxene is Fs2-12. Aqueous alteration of the matrix is substantial, but the chondrules are only modestly altered, apparently less so than those we group with MIL 15300, although this distinction may reflect the particular sections examined rather than real differences between these groups of meteorites. The meteorite is a CM2 chondrite. |
Antarctic Meteorite Images for Sample MIL 15409 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 15409 | ||||
Thin Section Photo(s) : | ||||