Sample Petrographic Description
Sample Number | CMS 04044 |
Newsletter | 28,2 |
Location | Cumulus Hills |
Field Number | 14002 |
Dimensions (cm) | 3.0 x 2.5 x 2.5 |
Weight (g) | 20.20 |
Original Classification | Ureilite |
Pairing | CMS 04044; CMS 04048; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 10-23;Ferrosilite (mol%): 19 | |
Weathering | |
Ce | |
Fracturing | |
C | |
Macroscopic Description - Kathleen McBride | |
CMS 04044 has a fractured brown exterior. 048 has 60% dull brown/black fusion crust with some polygonal fractures and oxidation. The interiors are rusty, crystalline with fractures. 044 has evaporites present. | |
Thin Section Description (,2) - Tim McCoy | |
The meteorites are so similar that a single description suffices. The sections consist of an aggregate of large olivine and pyroxene grains up to 2 mm across. Individual olivine grains are rimmed by carbon-rich material containing traces of metal. Olivine has cores of Fa23, with rims reduced to Fa3. Pigeonite is Fs19, Wo7. The meteorites are ureilites. |
Antarctic Meteorite Images for Sample CMS 04044 | ||||
Lab Photo(s) : | ||||
References for Sample CMS04044 | |
Rochette, P., Gattacceca, J., Bourot-Denise, M., Consolmagno, G., Folco, L., Kohout, T., Pesonen, L., Sagnotti, L., 2009, Magnetic classification of stony meteorites: 3. Achondrites. Meteoritics & Planetary Science, 44, 405-427, http://dx.doi.org/10.1111/j.1945-5100.2009.tb00741.x. |