Sample Petrographic Description
Sample Number | LAR 06618 |
Newsletter | 33,1 |
Location | Larkman Nunatak |
Field Number | 19140 |
Dimensions (cm) | 4.25 x 3.25 x 2.0 |
Weight (g) | 43.50 |
Original Classification | Ureilite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 7-19 | |
Weathering | |
Ce | |
Fracturing | |
C | |
Macroscopic Description - Kathleen McBride | |
Thick black vesicular fusion crust covers 30% of the exterior of this meteorite. The surface has slightly platy fracturing. The rusty brown interior is coarse grained with minor evaporates in tiny spots. | |
Thin Section Description (,4) - Cari Corrigan | |
The section consists of an aggregate of large (up to 2.5 mm) olivine grains. Individual olivine grains are rimmed by carbon-rich material containing traces of metal. Metal forms veins between olivines. Olivine has cores of Fa9, with rims reduced to Fa7. The meteorite is a ureilite. |
Antarctic Meteorite Images for Sample LAR 06618 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample LAR 06618 | ||||
Thin Section Photo(s) : | ||||