Sample Petrographic Description
Sample Number | LAP 02302 |
Newsletter | 27,3 |
Location | LaPaz Ice Field |
Field Number | 15444 |
Dimensions (cm) | 3.0 x 2.0 x 1.5 |
Weight (g) | 7.86 |
Original Classification | CM2 Chondrite |
Pairing | LAP 02269; LAP 02302; LAP 02308; LAP 02348; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-34 | |
Weathering | |
B/C | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
These CM2 chondrites have purplish black fusion crust on the surface. The interior is a black matrix with millimeter sized inclusions of various colors including white, crème, gray and black. | |
Thin Section Description (,2) - Tim McCoy, Cari Corrigan | |
The sections consists of a few small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; sulfide and carbonate grains are present. Olivine compositions are Fa0-34, with a peak at Fa0-2, and orthopyroxene is Fs1. The matrix consists dominantly of an Fe-rich serpentine; chondrules are relatively unaltered. The meteorites are CM2 chondrites. |
Antarctic Meteorite Images for Sample LAP 02302 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample LAP 02302 | ||||
Thin Section Photo(s) : | ||||