Sample Petrographic Description
Sample Number | MIL 090440 |
Newsletter | 34,2 |
Location | Miller Range |
Field Number | 20958 |
Dimensions (cm) | 1.0 x 1.0 x 0.75 |
Weight (g) | 0.89 |
Original Classification | CM1/2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-43 | |
Weathering | |
B/C | |
Fracturing | |
A/B | |
Macroscopic Description - Kathleen McBride | |
Brown/black fusion crust with polygonal fractures covers 50% of the exterior of this carbonaceous chondrite. The exposed exterior is dark brown with no inclusions visible to the naked eye. | |
Thin Section Description (,2) - Cari Corrigan, Linda Welzenbach, Nicole Lunning | |
This meteorite section consists of numerous, small, highly-altered chondrules and matrix with rare carbonates and few unaltered mafic silicates. Chondrule outlines are distinct, despite the extensive alteration. Olivine analyses are Fa0-43. No pyroxenes were available to measure. The meteorite is a CM1-2 chondrite. |
Antarctic Meteorite Images for Sample MIL 090440 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 090440 | ||||
Thin Section Photo(s) : | ||||