Sample Petrographic Description
Sample Number | LAP 03916 |
Newsletter | 28,2 |
Location | LaPaz Ice Field |
Field Number | 16764 |
Dimensions (cm) | 0.75 x 0.5 x 0.5 |
Weight (g) | 0.62 |
Original Classification | Iron-Ungrouped |
Weathering | |
B | |
Fracturing | |
A | |
Macroscopic Description - Tim McCoy | |
This small, equidimensional meteorite, measuring ~6 mm on a side, exhibits a uniform, rusty external appearance. | |
Thin Section Description (,1) - Tim McCoy | |
An end cut of this meteorite with a surface area of ~5 by 6 mm was mounted as a polished thin section and examined. The meteorite consists entirely of kamacite with an average Ni concentration of ~6 wt. %. The only structure revealed by nital etching is several sets of Neumann bands. Many of these bands are subsequently distorted and heat alteration is prevalent at the edges of the section, although weathering appears to have removed any fusion crust. The meteorite is classified as an ungrouped iron, but its small size suggests that it is probably not representative of the larger mass from which it was derived. |
Antarctic Meteorite Images for Sample LAP 03916 | ||||
Lab Photo(s) : | ||||