Sample Petrographic Description
Sample Number | QUE 94546 |
Newsletter | 19,1 |
Location | Queen Alexandra Range |
Field Number | 10263 |
Dimensions (cm) | 1.0 x 1.0 x 1.0 |
Weight (g) | 1.80 |
Original Classification | CV3 Chondrite |
Updated Classification | CV 3.6 Chondrite Reduced |
Pairing | QUE 93429; QUE 93744; QUE 94366; QUE 94546; QUE 97186; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-29;Ferrosilite (mol%): 1-4 | |
Weathering | |
B/Ce | |
Fracturing | |
B/C | |
Macroscopic Description - Kathleen McBride | |
Dull, polygonally-fractured, vesicular fusion crust remains on 90% of the exterior of this stone. The interior is black and has abundant evaporite deposit scattered across the broken surface. Oxidation is heavy. | |
Thin Section Description (,2) - Brian Mason | |
The section shows chondrules (up to 2.4 mm across) and irregular granular aggregates in a brown to black semi-translucent matrix. The chondrules and aggregates consist largely of olivine; minor amounts of nickel-iron and troilite are present, often concentrated as rims to the chondrules. Microprobe analyses show olivine and pyroxene of variable composition: olivine, Fa1-29, mean Fa8; pyroxene, Fs1-4. The meteorite is classified as a C3 of the Vigarano subclass; it is very similar to QUE94366, and the possibility of pairing should be considered. | |
Reclassification Notes (AMN 46,1) | |
Reclassification and pairing based on Raman spectroscopy (petrologic type 3.6), and on Ni content of metal and sulfide and magnetic susceptibility (Reduced). Details are reported in Righter et al. (2022); doi: 10.1111/maps.13932. |
Antarctic Meteorite Images for Sample QUE 94546 | ||||
Thin Section Photo(s) : | ||||