Sample Petrographic Description
Sample Number | QUE 94613 |
Newsletter | 19,2 |
Location | Queen Alexandra Range |
Field Number | 10834 |
Dimensions (cm) | 2.0 x 1.5 x 1.0 |
Weight (g) | 5.08 |
Original Classification | Ureilite |
Pairing | QUE 93336; QUE 93341; QUE 94613; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 22-24;Ferrosilite (mol%): 19 | |
Weathering | |
B | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
Forty percent of the exterior of this meteorite is covered with dark brown to black fusion crust. Areas without fusion crust are rusty brown in color. The interior is dull brown to black with some metal grains and some weathered mineral grains visible. | |
Thin Section Description (,2) - Brian Mason | |
The section shows anhedral grains of olivine and a little pyroxene (grains up to 2.4 mm across) in a black matrix. The matrix contains veinlets of brown limonite, presumably from the weathering of metal and sulfide. Microprobe analyses show olivine of nearly uniform composition, Fa22-24, with notably high CaO (0.4%); pyroxene composition is Wo10Fs19. The meteorite is a ureilite; it appears to be relatively unshocked compared to most ureilites. It is probably paired with QUE93336 and 93341. |
Antarctic Meteorite Images for Sample QUE 94613 | ||||
Thin Section Photo(s) : | ||||