Sample Petrographic Description
Sample Number | LAP 04771 |
Newsletter | 30,1 |
Location | LaPaz Ice Field |
Field Number | 17429 |
Dimensions (cm) | 1.0 x 0.75 x 0.25 |
Weight (g) | 0.58 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-50;Ferrosilite (mol%): 2 | |
Weathering | |
B | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
50% of the exterior surface is covered with black fusion crust. | |
Thin Section Description (,2) - Tim McCoy, Valerie Reynolds | |
The section consists 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 Fa1-50, orthopyroxene is Fs2. The matrix consists dominantly of an Fe-rich serpentine. The meteorite is a CM2 chondrite. |
Antarctic Meteorite Images for Sample LAP 04771 | ||||
Thin Section Photo(s) : | ||||