Sample Petrographic Description
Sample Number | MET 00433 |
Newsletter | 24,2 |
Location | Meteorite Hills |
Field Number | 13755 |
Dimensions (cm) | 2.5 x 3.5 x 1.0 |
Weight (g) | 10.90 |
Original Classification | CM2 Chondrite |
Pairing | MET 00431; MET 001012; MET 00433; MET 00434; MET 00435; MET 00630; MET 00632; MET 00633; MET 00635; MET 00639; MET 00781; MET 00810; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-8 | |
Weathering | |
Be | |
Fracturing | |
C | |
Macroscopic Description - Kathleen McBride | |
The exterior of these meteorites is black. The interior is platy and black in color with evaporites and tiny, round, white chondrules. | |
Thin Section Description (,2) - Tim McCoy, Linda Welzenbach | |
The sections consist of a few small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix. Olivine compositions are Fa0-31, with most less than Fa2, and orthopyroxene is Fs0-7. In thin sections, these meteorites exhibit fracturing and flattening of chondrules along a preferred orientation. The matrix is an iron-rich serpentine which occurs in spheres of ~200 microns in diameter, with each sphere exhibiting a fibrous internal texture. Parting of the meteorites occurs between these spheres. The meteorites are CM2 chondrites |
Antarctic Meteorite Images for Sample MET 00433 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MET 00433 | ||||
Thin Section Photo(s) : | ||||
References for Sample MET00433 | |
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. |