Sample Petrographic Description
Sample Number | MIL 13180 |
Newsletter | 40,1 |
Location | Miller Range |
Field Number | 21725 |
Dimensions (cm) | 1.0 x 1.0 x 0.5 |
Weight (g) | 1.14 |
Original Classification | Ureilite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 12-13;Ferrosilite (mol%): 11 | |
Weathering | |
B | |
Fracturing | |
A | |
Macroscopic Description - Cecilia Satterwhite | |
98% of the exterior has black/brown fusion crust. The dark gray to black matrix has metal and some oxidation. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The section consists of an aggregate of large olivine and pyroxene grains up to 2 mm across. Individual olivine grains are rimmed by carbon-rich material containing traces of metal. Olivine compositions are nearly homogeneous at Fa12-13. Pigeonite compositions are Fs11,Wo6 and augite compositions are Fs1-2Wo42. The meteorite is a ureilite. |
Antarctic Meteorite Images for Sample MIL 13180 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 13180 | ||||
Thin Section Photo(s) : | ||||