Newsletter |
30,2 |
Location |
Larkman Nunatak |
Field Number |
15593 |
Dimensions (cm) |
2.75 x 2.5 x 1.5 |
Weight (g) |
13.99 |
Original Classification |
L3 Chondrite |
Updated Classification |
L3.9 Chondrite |
Fayalite (mol%): 17-31;Ferrosilite (mol%): 6-27 |
B |
A |
The exterior has 80% thin black fusion crust. The interior is a dark brown matrix with high metal content and contains <3 mm sized chondrules of various colors. |
The section exhibits numerous large, well-defined chondrules (up to 3 mm) in a black matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. The meteorite is highly weathered. Silicates are unequilibrated; olivines range from Fa17-31, with most grains Fa30-31, and pyroxenes from Fs6-27. The meteorite is an L3 chondrite (estimated subtype 3.9). |
Classification updated to L3.9, as announced in AMN vol. 30, no. 2. |