Sample Petrographic Description
Sample Number | LAP 031046 |
Newsletter | 29,2 |
Location | LaPaz Ice Field |
Field Number | 16856 |
Dimensions (cm) | 2.5 x 1.5 x 1.75 |
Weight (g) | 14.64 |
Original Classification | H5 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 19;Ferrosilite (mol%): 17 | |
Weathering | |
C | |
Fracturing | |
C | |
Macroscopic Description - Kathleen McBride | |
The exterior of this ordinary chondrite is dark brown. The interior is brown, friable and crumbles easily. | |
Thin Section Description (,2) - Tim McCoy | |
The meteorite is an H5 chondrite (Fa19, Fs17) that has been extensively shock-blackened and veined. No high-pressure polymorphs (e.g., ringwoodite) were noted during optical microscopy. |