Sample Petrographic Description
Sample Number | EET 96341 |
Newsletter | 21,2 |
Location | Elephant Moraine |
Field Number | 10610 |
Dimensions (cm) | 2.5 x 2.5 x 3.5 |
Weight (g) | 26.00 |
Original Classification | EH4-5 Chondrite |
Updated Classification | EH4/5 Chondrite |
Pairing | EET 96135; EET 96202; EET 96217; EET 96223; EET 96299; EET 96309; EET 96341; |
Mineral Composition (%Fa & %Fs) | |
Ferrosilite (mol%): 0-3 | |
Weathering | |
A | |
Fracturing | |
A | |
Macroscopic Description - Kathleen McBride | |
The exterior of this meteorite has black polygonal fractured fusion crust over its entire surface. Oxidation halos are present. The interior is steel gray, fined grained matrix with a sugary texture. There is a minor amount of rust and metal visible. Dark mm sized inclusions are present. This meteorite was very hard. | |
Thin Section Description (,2) - Tim McCoy | |
This section consists of an aggregate of small chondrules (most less than 0.5 mm), chondrule fragments and pyroxene grains with metal and troilite. Weathering is relatively minor. Enstatite is Fs0-4. One grain of free silica was analyzed and metal contains ~2.4 wt. % Si. The meteorite is an EH4-5 chondrites and may be paired with EET96135. | |
Reclassification Notes (AMN 31,1) | |
Reclassified as EH4/5 Chondrite in AMN 31,1. |
Antarctic Meteorite Images for Sample EET 96341 | ||||
Thin Section Photo(s) : | ||||
References for Sample EET96341 | |
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. | |
Johnston, S., Brandon, A., McLeod, C., Rankenburg, K., Becker, H., and Copeland, P., 2022, Nd isotope variation between the Earth-Moon system and enstatite chondrites, Nature, 611, doi: 10.1038/s41586-022-05265-0. | |
Van Acken, D., Brandon, A. D., Humayun, M., 2011, High-precision osmium isotopes in enstatite and Rumuruti chondrites. Geochimica et Cosmochimica Acta, 75 Issue 14, 15-Jul-11, 4020-4036, ISSN 0016-7037, http://dx.doi.org/10.1016/j.gca.2011.04.019. | |
Vernazza,. P., Brunetto, R., Lamy, P., Groussin, O., Hiroi, T., Jorda, L., King, P. L., Izawa, M.R. M., Marchis, F., Birlan, M., 2011, Asteroid (21) Lutetia as a remnant of Earth's precursor planetesimals. Icarus, 216 Issue 2, Dec-11, 650-659, ISSN 0019-1035, http://dx.doi.org/10.1016/j.icarus.2011.09.032. | |
RELAB, , Reflectance Experiment Lab , catalogue of samples. |