Sample Petrographic Description
Sample Number | MET 01077 |
Newsletter | 25,2 |
Location | Meteorite Hills |
Field Number | 13900 |
Dimensions (cm) | 3.5 x 2.0 x 1.5 |
Weight (g) | 18.91 |
Original Classification | CM2 Chondrite |
Pairing | MET 01076; MET 01077; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-53;Ferrosilite (mol%): 1-8 | |
Weathering | |
C | |
Fracturing | |
A | |
Macroscopic Description - Kathleen McBride | |
The exteriors have dull, rough, black fusion crust with pits and polygonal fractures. The interiors reveal a brown-black matrix with mm-sized clasts and chondrules. Colors range from white to tan. | |
Thin Section Description (,2) - Gretchen Benedix, Linda Welzenbach, Tim McCoy | |
The sections consist of many small chondrules with some up to 1.5 mm, mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0-53, orthopyroxene is Fs1-16, although the majority of orthopyroxene is less than Fs3. The matrix consists dominantly of serpentine. The meteorites are CM2 chondrites. |
Antarctic Meteorite Images for Sample MET 01077 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MET 01077 | ||||
Thin Section Photo(s) : | ||||
References for Sample MET01077 | |
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. |