Sample Petrographic Description
Sample Number | LAP 031043 |
Newsletter | 29,2 |
Location | LaPaz Ice Field |
Field Number | 16435 |
Dimensions (cm) | 3.0 x 2.5 x 1.0 |
Weight (g) | 8.12 |
Original Classification | CM2 Chondrite |
Pairing | LAP 031043; LAP 031165; LAP 031195; LAP 031268; LAP 031299; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-48 | |
Weathering | |
A/B | |
Fracturing | |
A/B | |
Macroscopic Description - Kathleen McBride | |
Black polygonally fractured fusion crust is on the exterior of these meteorites. The interior of these carbonaceous chondrites is a black powdery matrix with light gray and white chondrules and inclusions. | |
Thin Section Description (,2) - Tim McCoy | |
The sections consist of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-48; rare orthopyroxenes are Fs1-38. The matrix consists pre-dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites. |
Antarctic Meteorite Images for Sample LAP 031043 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample LAP 031043 | ||||
Thin Section Photo(s) : | ||||