Sample Petrographic Description
Sample Number | QUE 94299 |
Newsletter | 19,1 |
Location | Queen Alexandra Range |
Field Number | 10813 |
Dimensions (cm) | 2.4 x 2.1 x 0.9 |
Weight (g) | 13.41 |
Original Classification | Mesosiderite |
Mineral Composition (%Fa & %Fs) | |
Ferrosilite (mol%): 32 | |
Weathering | |
B/C | |
Fracturing | |
A/B | |
Macroscopic Description - Cecilia Satterwhite | |
The exterior of this meteorite has some patches of thin shiny black fusion crust. Most surfaces have a brownish color and areas of heavy oxidation are yellowish-brown in color. A few fractures penetrate the interior. The interior reveals a mixture of very fine-grained metal grains and very weathered, fine-grained silicates. Despite the abundant metal, this stone broke easily. | |
Thin Section Description (,3) - Brian Mason | |
The section shows a granular aggregate of subequal amounts of nickel-iron and silicates, with minor amounts of troilite; the silicates are pyroxene and plagioclase. Minor weathering is indicated by a moderate amount of brown limonitic staining. Pyroxene composition is almost uniform at Wo2Fs32; the plagioclase is anorthite, An91-96; accessory amounts of an SiO2 polymorph, probably tridymite, are present. The meteorite is a mesosiderite. |
Antarctic Meteorite Images for Sample QUE 94299 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample QUE 94299 | ||||
Thin Section Photo(s) : | ||||