Newsletter |
39,1 |
Location |
Larkman Nunatak |
Field Number |
23146 |
Dimensions (cm) |
4.0 x 3.5 x 3.0 |
Weight (g) |
68.40 |
Original Classification |
L3.6 Chondrite |
Fayalite (mol%): 2-40;Ferrosilite (mol%): 26 |
Ae |
A |
85% of the exterior has black fusion crust with evaporites. The exposed surface has dark brown and rusty areas with some white inclusions/chondrules visible. The dark matrix with white and gray inclusions/chondrules has some minor amounts of orange rusty shiny metal throughout. |
The section exhibits numerous large, well-defined chondrules (up to 1.5 mm) in a dark matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is present. The meteorite is highly weathered. Silicates are unequilibrated; olivines range from Fa2-40 and pyroxene is Fs25Wo1. The meteorite is an L3 chondrite (estimated subtype 3.6). |