Sample Petrographic Description
Sample Number | PCA 02016 |
Newsletter | 26,2 |
Location | Pecora Escarpment |
Field Number | 13652 |
Dimensions (cm) | 3.0 x 2.5 x 1.75 |
Weight (g) | 23.87 |
Original Classification | Howardite |
Pairing | PCA 02009; PCA 02013; PCA 02014; PCA 02015; PCA 02016; PCA 02018; PCA 02019; PCA 02065; PCA 02066; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 33;Ferrosilite (mol%): 33-59 | |
Weathering | |
B | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
Brown/black fusion crust covers over 50% of the exterior surface. The crust exhibits polygonal fractures and oxidation halos. The exposed interior is multiple shades of gray with some rust and exposed clasts. The interior is brecciated with a medium gray matrix with numerous multi-colored clasts, round to angular in shape and varying in size from 1-2 mm. | |
Thin Section Description (,4) - Tim McCoy, Linda Welzenbach | |
The section contains abundant basaltic clasts with rare orthopyroxene clasts. The basaltic clasts include heavily shocked coarse-grained clasts, clasts dominated by metal and sulfide and a glassy quench-textured clast, with individual clasts ranging up to 2 mm. Minerals present include olivine (Fa33), orthopyroxene (Fs33-59; Fe/Mn ~ 25), augite (up to Fs53), plagioclase (An92-95), metal and sulfide. The meteorite is a howardite. |
Antarctic Meteorite Images for Sample PCA 02016 | ||||
Lab Photo(s) : | ||||