Sample Petrographic Description
Sample Number | MIL 090443 |
Newsletter | 34,2 |
Location | Miller Range |
Field Number | 20969 |
Dimensions (cm) | 2.5 x 1.5 x 1.5 |
Weight (g) | 7.86 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-34 | |
Weathering | |
Be | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
Smooth black fusion crust with polygonal fractures covers 90% of the exterior of this carbonaceous chondrite. The interior matrix is black with slightly lighter multicolored clasts and chondrules. Some evaporites are present. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy, Linda Welzenbach | |
The section consists of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; no metal or sulfide grains are present. Olivine compositions are Fa0-34. Aqueous alteration of the matrix is minimal, and the chondrules are only modestly altered. This meteorite is a CM2 chondrite. |
Antarctic Meteorite Images for Sample MIL 090443 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 090443 | ||||
Thin Section Photo(s) : | ||||