Sample Petrographic Description
Sample Number | QUE 94639 |
Newsletter | 19,2 |
Location | Queen Alexandra Range |
Field Number | 5918 |
Dimensions (cm) | 1.1 x 1.0 x 0.2 |
Weight (g) | 0.64 |
Original Classification | Mesosiderite |
Pairing | QUE 86900; QUE 93001; QUE 93002; QUE 93126; QUE 93150; QUE 93517; QUE 93575; QUE 93584; QUE 93586; QUE 94614; QUE 94639; |
Mineral Composition (%Fa & %Fs) | |
Ferrosilite (mol%): 28-48 | |
Weathering | |
B/Ce | |
Fracturing | |
A | |
Macroscopic Description - Carol Schwarz | |
The exterior surface of this small flat fragment is dark brown with a few mm-sized yellow and green mineral grains visible. Some evaporite is also present. The interior is dark brown, mostly metal, with yellow and brown crystals scattered throughout. | |
Thin Section Description (,2) - Brian Mason | |
This section shows plagioclase and pyroxene clasts, up to 1.2 mm across, in an opaque matrix of nickel-iron and troilite (the nickel-iron extensively weathered to limonite). Most of the pyroxene is hypersthene, with composition near Wo3Fs28, but one grain of augite, Wo40Fs27, was analyzed. Plagioclase composition is An91-96. One grain of tridymite was analyzed. The meteorite is a mesosiderite, and can be confidently paired with QUE 86900. |
Antarctic Meteorite Images for Sample QUE 94639 | ||||
Thin Section Photo(s) : | ||||