Sample Petrographic Description
Sample Number | LAP 04689 |
Newsletter | 30,2 |
Location | LaPaz Ice Field |
Field Number | 17633 |
Dimensions (cm) | 2.0 x 2.0 x 1.5 |
Weight (g) | 11.24 |
Original Classification | H5 Chondrite |
Pairing | LAP 04672; LAP 04689; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 19;Ferrosilite (mol%): 17 | |
Weathering | |
C | |
Fracturing | |
C | |
Macroscopic Description - Kathleen McBride | |
The exteriors vary from brown/black to brown. The interiors are brittle rusty brown with high metal and fine grained dark gray matrix. | |
Thin Section Description - Tim McCoy, Lauren LaCroix, Linda Welzenbach | |
These meteorites are melt-veined H5 chondrites (Fa19, Fs17) with veins of fine-grained shock melt with small blebs of metal and sulfide. A relationship with the LAP 02240 group is possible, if all of these meteorites represent different proportions of matrix and melt in an impact-melt breccia. |
Antarctic Meteorite Images for Sample LAP 04689 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample LAP 04689 | ||||
Thin Section Photo(s) : | ||||