Sample Petrographic Description
Sample Number | MIL 090489 |
Newsletter | 34,1 |
Location | Miller Range |
Field Number | 20079 |
Dimensions (cm) | 1.25 x 1.0 x 0.75 |
Weight (g) | 1.03 |
Original Classification | CM1/2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-30 | |
Weathering | |
C | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
30% of the exterior surface is covered with brown/black fusion crust with polygonal fractures. The interior is a black matrix, fairly hard with metal and tiny light colored and rusty inclusions/chondrules. | |
Thin Section Description (,2) - Cari Corrigan, Linda Welzenbach | |
This section consists of a few chondrules, most of which are highly altered, and matrix with rare unaltered mafic silicates. One CAI was found in the section. Olivine analyses are Fa0-30. No unaltered pyroxenes were found. The meteorite is a CM1-2 meteorite. |
Antarctic Meteorite Images for Sample MIL 090489 | ||||
Thin Section Photo(s) : | ||||