Sample Petrographic Description
Sample Number | MIL 090103 |
Newsletter | 33,2 |
Location | Miller Range |
Field Number | 20757 |
Dimensions (cm) | 4.0 x 3.5 x 2.5 |
Weight (g) | 52.58 |
Original Classification | CK5-6 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 32;Ferrosilite (mol%): 8-10 | |
Weathering | |
B | |
Fracturing | |
B | |
Macroscopic Description - Roger Harrington | |
3% of the exterior of this sample is covered with a shiny dark brown fusion crust. The remaining 97% is broken surface consisting of dark gray fine-grained matrix with four 1-2 mm gray clasts on the one surface. The interior of this sample is a medium gray fine-grained matrix. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy, Linda Welzenbach | |
The section consists of poorly-defined chondrules (up to 1 mm) in a matrix of finer-grained silicates, sulfides and abundant magnetite. Silicates are homogeneous. Olivine is Fa32 and orthopyroxene is Fs8-10. The meteorite is a CK5-6 chondrite. |
Antarctic Meteorite Images for Sample MIL 090103 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 090103 | ||||
Thin Section Photo(s) : | ||||
References for Sample MIL090103 | |
Dyar, M.D., Wallace, S.M., Burbine, T.H., and Sheldon, D.R., 2023, A machine learning classification of meteorite spectra applied to understanding asteroids. Icarus, 406, 115718, https://doi.org/10.1016/j.icarus.2023.115718. | |
Wasson, J. T., Isa, J., Rubin, A. E., 2013, Compositional and petrographic similarities of CV and CK chondrites: A single group with variations in textures and volatile concentrations attributable to impact heating, crushing and oxidation. Geochimica et Cosmochimica Acta, 108, 1-May-13, 45-62, ISSN 0016-7037, http://dx.doi.org/10.1016/j.gca.2013.01.011. | |
RELAB, , Reflectance Experiment Lab , catalogue of samples. |