Sample Petrographic Description
Sample Number | LAP 031158 |
Newsletter | 29,1 |
Location | LaPaz Ice Field |
Field Number | 16353 |
Dimensions (cm) | 2.0 x 1.0 x 1.0 |
Weight (g) | 4.41 |
Original Classification | CK5 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 27 | |
Weathering | |
B | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
95% of the exterior has black fusion crust with polygonal fractures. The interior is a charcoal gray matrix with gray chondrules. | |
Thin Section Description (,2) - Tim McCoy, Linda Welzenbach | |
The section consists of a few large (up to 2 mm) chondrules in a recrystallized matrix of finer-grained silicates, sulfides and magnetite. Shock effects are extensive. Olivine is homogeneous at Fa27. The meteorite is a CK5 chondrite. |
Antarctic Meteorite Images for Sample LAP 031158 | ||||
Thin Section Photo(s) : | ||||