Sample Petrographic Description
Sample Number | QUE 93309 |
Newsletter | 18,1 |
Location | Queen Alexandra Range |
Field Number | 8483 |
Dimensions (cm) | 2.4 x 1.8 x 1.1 |
Weight (g) | 8.44 |
Original Classification | L3.5 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 7-28;Ferrosilite (mol%): 6-26 | |
Weathering | |
B/Ce | |
Fracturing | |
A | |
Macroscopic Description - Robbie Marlow | |
Shiny, smooth, dark-brown fusion crust covers ninety-five percent of the exterior of this chondrite. The interior is composed of weathered, brownish-black matrix. Oxidation is extensive and evaporite deposit was noted in the interior. | |
Thin Section Description (,2) - Brian Mason | |
The section shows numerous chondrules (up to 2.4 mm across), chondrule fragments, and mineral grains in a small amount of black matrix. The meteorite is severely weathered, with only traces of nickel-iron and troilite remaining. Microprobe analyses show a wide range in olivine and pyroxene compositions: olivine, Fa7-28, mean Fa14; pyroxene, Fs6-26. The meteorite is classified as an L3 Chondrite (estimated L3.5). |
Antarctic Meteorite Images for Sample QUE 93309 | ||||
Thin Section Photo(s) : | ||||