Sample Petrographic Description
Sample Number | MIL 15029 |
Newsletter | 40,1 |
Location | Miller Range |
Field Number | 24100 |
Dimensions (cm) | 4.5 x 3.0 x 3.0 |
Weight (g) | 34.01 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-69;Ferrosilite (mol%): 1 | |
Weathering | |
B | |
Fracturing | |
B | |
Macroscopic Description - Cecilia Satterwhite | |
The exterior surface has weathered black patches of fusion crust. Areas without fusion crust are brown in color with rusty areas. Some dark gray to black matrix is exposed and inclusions and chondrules are visible. Some areas have vugs. The interior is a fine grained black matrix with some oxidation; small white and rusty inclusions are visible. | |
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 Fa1-69, orthopyroxene is Fs1. 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 15029 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 15029 | ||||
Thin Section Photo(s) : | ||||