Sample Petrographic Description
Sample Number | MIL 15308 |
Newsletter | 40,1 |
Location | Miller Range |
Field Number | 23092 |
Dimensions (cm) | 3.5 x 2.3 x 2.0 |
Weight (g) | 18.18 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-51 | |
Weathering | |
B/C | |
Fracturing | |
B | |
Macroscopic Description - Cecilia Satterwhite | |
The exterior surface has 80% black fractured patchy fusion; areas without fusion crust are black with some evaporites; some gray and weathered inclusions/chondrules are visible. The interior is a black matrix with small light colored inclusions/chondrules, some are weathered. A very large evaporite deposit is present especially along the fracture where sample was broken. | |
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 Fa1-51. 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 15308 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 15308 | ||||
Thin Section Photo(s) : | ||||