Sample Petrographic Description
Sample Number | MAC 02779 |
Newsletter | 28,1 |
Location | MacAlpine Hills |
Field Number | 14251 |
Dimensions (cm) | 0.5 x 0.5 x 0.75 |
Weight (g) | 0.30 |
Original Classification | CM2 Chondrite |
Pairing | MAC 02779; MAC 02854; |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 1-39 | |
Weathering | |
B | |
Fracturing | |
A | |
Macroscopic Description - Kathleen McBride | |
The exterior of these carbonaceous chondrites ranges from black to brown with rusty areas. Some metal is visible. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The sections of these very small meteorites consist of a few small chondrules (up to 1 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa1-39, with a peak at Fa1-3. The matrix consists dominantly of an Fe-rich serpentine. The meteorites are CM2 chondrites. |
Antarctic Meteorite Images for Sample MAC 02779 | ||||
Thin Section Photo(s) : | ||||