Sample Petrographic Description
Sample Number | LAR 12204 |
Newsletter | 38,1 |
Location | Larkman Nunatak |
Field Number | 23141 |
Dimensions (cm) | 2.8 x 1.8 x 0.5 |
Weight (g) | 15.35 |
Original Classification | Iron-IIAB |
Macroscopic Description - Cari Corrigan, Tim McCoy | |
The main mass of this meteorite is flattened and has an intermittently dull and lustrous brown surface. The surface shows modest pitting over the entire surface, and frequent rust haloes are present. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The meteorite was observed as a slice measuring 7 x 15 mm. Fusion crust appears to be present on one end of the section. The entire interior of the sample is converted to α2, with numerous elongate rhabdites. The average composition based on a microprobe traverse of 100 points is 5.3 wt% Ni and 0.2 wt% P. The meteorite is likely a IIAB iron but it has been heavily shocked or reheated. |
Antarctic Meteorite Images for Sample LAR 12204 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample LAR 12204 | ||||
Thin Section Photo(s) : | ||||