Sample Petrographic Description
Sample Number | EET 99437 |
Newsletter | 24,1 |
Location | Elephant Moraine |
Field Number | 12329 |
Dimensions (cm) | 1.5 x 1.5 x 1.5 |
Weight (g) | 6.00 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-51;Ferrosilite (mol%): 1 | |
Weathering | |
Be | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
The exterior has thick black fusion crust with polygonal fractures on its entire surface. The matrix is black, charcoal-like with an oxidation rind. The meteorite contains white and rust colored chondrules/inclusions, less then 1 mm in size. | |
Thin Section Description (,3) - Tim McCoy, Linda Welzenbach | |
The section consists of small chondrules (rarely up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0-51, with many grains Fa0-1. A single orthopyroxene is Fs1. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite |
Antarctic Meteorite Images for Sample EET 99437 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample EET 99437 | ||||
Thin Section Photo(s) : | ||||
References for Sample EET99437 | |
Rochette, P., Kohout, T., Pesonen, L., Quirico, E., Sagnotti, L., Skripnik, A., Gattacceca, J., Bonal, L., Bourot-Denise, M., Chevrier, V., Clerc, J. P., Consolmagno, G., Folco, L., Gounelle, M., 2008, Magnetic classification of stony meteorites: 2. Non-ordinary chondrites. Meteoritics & Planetary Science, 43, 959-980, http://dx.doi.org/10.1111/j.1945-5100.2008.tb01092.x. |