Sample Petrographic Description
Sample Number | LAP 031371 |
Newsletter | 29,2 |
Location | LaPaz Ice Field |
Field Number | 16954 |
Dimensions (cm) | 3.0 x 2.0 x 1.25 |
Weight (g) | 8.81 |
Original Classification | CM2 Chondrite |
Pairing | LAP 03786; LAP 031371; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-36;Ferrosilite (mol%): 1-30 | |
Weathering | |
B | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
The exterior has purple black fusion crust with polygonal fractures. The interior is black and powdery with light <1 mm sized chondrules/inclusions. | |
Thin Section Description (,2) - Tim McCoy, Emma Bullock | |
The sections consist of moderately abundant small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; metal and sulfide grains are present. Olivine compositions are Fa1-40, orthopyroxene is Fs1-30. The matrix consists pre-dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites. |
Antarctic Meteorite Images for Sample LAP 031371 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample LAP 031371 | ||||
Thin Section Photo(s) : | ||||