Sample Petrographic Description
Sample Number | MIL 13322 |
Newsletter | 40,1 |
Location | Miller Range |
Field Number | 21315 |
Dimensions (cm) | 1.8 x 1.5 x 1.1 |
Weight (g) | 2.60 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 2-13;Ferrosilite (mol%): 2-6 | |
Weathering | |
A/Be | |
Fracturing | |
B | |
Macroscopic Description - Rachel Funk | |
Black fractured fusion crust covers 80% of the exterior surface, evaporites are present. The exposed surface is black with black and gray chondrules and inclusions. The black matrix has gray and beige chondrules/inclusions 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 Fa2-13, orthopyroxene is Fs2-6. 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 13322 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 13322 | ||||
Thin Section Photo(s) : | ||||