Sample Petrographic Description
Sample Number | QUE 94603 |
Newsletter | 19,1 |
Location | Queen Alexandra Range |
Field Number | 10227 |
Dimensions (cm) | 1.0 x 1.5 x 0.5 |
Weight (g) | 1.69 |
Original Classification | CR2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-23;Ferrosilite (mol%): 1-5 | |
Weathering | |
C | |
Fracturing | |
B | |
Macroscopic Description - Roberta Score | |
This of one of the most rusted stones I have seen! | |
Thin Section Description (,2) - Brian Mason | |
The section shows a close-packed aggregate of chondrules (up to 1.8 mm across) and chondrule fragments in a small amount of matrix; much of the matrix is black, but there are areas of pale green isotropic material. About 20% of the nickel-iron and troilite is present, dispersed through the matrix and within the chondrules. Microprobe analyses show that most of the olivine and pyroxene is almost iron-free, but with occasional iron-rich grains: olivine, Fa1-23, mean Fa4; pyroxene, Fs1-5. The meteorite is tentatively classified as a C2 chondrite of the Renazzo subtype. |
Antarctic Meteorite Images for Sample QUE 94603 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample QUE 94603 | ||||
Thin Section Photo(s) : | ||||
References for Sample QUE94603 | |
Prestgard, T., Beck, P., Bonal, L., Eschrig, J., Gattacceca, J., Sonzogni, C., and Krämer Ruggiu, L., 2023, The parent bodies of CR chondrites and their secondary history, Meteoritics & Planetary Science, 58, 1117-1148, doi: 10.1111/maps.14048. | |
Schrader, D. L., Franchi, I. A., Connolly Jr., H. C., Greenwood, R. C., Lauretta, D. S., Gibson, J. M., 2011, The formation and alteration of the Renazzo-like carbonaceous chondrites I: Implications of bulk-oxygen isotopic composition. Geochimica et Cosmochimica Acta, 75 Issue 1, 1-Jan-11, 308-325, ISSN 0016-7037, http://dx.doi.org/10.1016/j.gca.2010.09.028. |