Sample Petrographic Description
Sample Number | MAC 02701 |
Newsletter | 27,3 |
Location | MacAlpine Hills |
Field Number | 14115 |
Dimensions (cm) | 3.0 x 2.0 x 2.0 |
Weight (g) | 10.11 |
Original Classification | CM2 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-41;Ferrosilite (mol%): 1-3 | |
Weathering | |
Be | |
Fracturing | |
B | |
Macroscopic Description - Kathleen McBride | |
75% of the exterior is covered with black fusion crust with polygonal fractures. The interior is a powdery black matrix with evaporites. Some sub mm light colored chondrules are visible. | |
Thin Section Description (,2) - Tim McCoy, Linda Welzenbach | |
The section 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 Fa0-41, with a peak at Fa0-1, and orthopyroxene is Fs1-3. The matrix consists dominantly of an Fe-rich serpentine; chondrules are relatively unaltered. The meteorite is a CM2 chondrite. |
Antarctic Meteorite Images for Sample MAC 02701 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MAC 02701 | ||||
Thin Section Photo(s) : | ||||