Sample Petrographic Description
Sample Number | MIL 07448 |
Newsletter | 31,2 |
Location | Miller Range |
Field Number | 18646 |
Dimensions (cm) | 2.1 x 2.0 x 2.0 |
Weight (g) | 42.44 |
Original Classification | Iron-IAB-IIICD |
Weathering | |
A/B | |
Fracturing | |
A | |
Macroscopic Description - Cari Corrigan, Linda Welzenbach | |
This roughly spherical meteorite is heavily pitted with one end appearing to be broken. The exterior surface has a prominent fusion crust with rust halos associated with pitting. Some pits have a distinctive linear aspect that suggests a Widmanstätten structure. | |
Thin Section Description - Tim McCoy, Cari Corrigan, Linda Welzenbach | |
The meteorite was examined from a cut and etched surface, which bisects the specimen. The meteorite appears to have been heavily shocked and exhibits α2 structure throughout, with abundant Neumann bands and little Widmanstätten pattern preserved. A heat altered zone ~800 microns thick underlies a small amount of highly weathered fusion crust. The meteorite is polycrystalline with large kamacite grains up to 2 mm wide (L/W ~5) separated by thin ribbons of zoned taenite which |
Antarctic Meteorite Images for Sample MIL 07448 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 07448 | ||||
Thin Section Photo(s) : | ||||