Newsletter |
38,2 |
Location |
Miller Range |
Field Number |
21106 |
Dimensions (cm) |
3.6 x 2.2 x 1.0 |
Weight (g) |
11.57 |
Original Classification |
Eucrite (Brecciated) |
Pairing |
MIL 11041;
MIL 11291;
MIL 13079;
MIL 15080;
|
Ferrosilite (mol%): 24-62 |
A |
A/B |
70% of the exterior has glossy jet black fusion crust and minor fractures. Areas without fusion crust are gray with some oxidation. The interior is gray matrix with black and white inclusions and minor weathering. |
The section consists of a coarsely comminuted pyroxenes (up to 1 mm) and feldspar (up to 0.5) mm set in a fine-grained matrix. Polyminerallic clasts are scarce, with most fragments being monominerallic. Mineral compositions are homogeneous with orthopyroxene (Fs62Wo2), with lamellae of augite (Fs24Wo47), and plagioclase (An88Or0.5). The Fe/Mn ratio of the pyroxene is ~28. The meteorite is a brecciated eucrite. |
MIL 11041, 11291, 13079, and 15080 all paired based on young ages for 11291 and 15080, as well as identical textures and mineralogy of MIL 11041 and MIL 13079 to these two. Pairing updated in AMN 47,1. |