Sample Petrographic Description
Sample Number | DEW 96601 |
Newsletter | 21,2 |
Location | Mt. DeWitt |
Field Number | 10176 |
Dimensions (cm) | 2.5 x 2.0 x 2.0 |
Weight (g) | 17.35 |
Original Classification | H3.8 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 14-21;Ferrosilite (mol%): 3-17 | |
Weathering | |
B/Ce | |
Fracturing | |
A/B | |
Macroscopic Description - Kathleen McBride | |
The exterior has brown/black fusion crust with oxidation halos and some evaporites. The interior has a sugary texture with rusty metal grains. Dark and light colored chondrules are visible and some rusty inclusions are present. | |
Thin Section Description (,2) - Tim McCoy | |
The section exhibits numerous small, well-defined chondrules (up to 1 mm) in a black matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is extremely abundant. Weathering is pervasive. Silicates are unequilibrated; olivines range from Fa14-21 and pyroxenes from Fs3-17. The meteorite is probably an H3 chondrite (estimated subtype 3.8). |
Antarctic Meteorite Images for Sample DEW 96601 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample DEW 96601 | ||||
Thin Section Photo(s) : | ||||