Newsletter |
34,2 |
Location |
Miller Range |
Field Number |
20345 |
Dimensions (cm) |
5.5 x 4.5 x 2.25 |
Weight (g) |
97.48 |
Original Classification |
Howardite |
Updated Classification |
Eucrite (Brecciated) |
Ferrosilite (mol%): 23-59 |
A/B |
A |
The exterior surface consists of ~80% shiny black fusion crust with a wrinkled appearance. The interior matrix is medium to dark gray in color with angular tan, white and black clasts. |
This section shows a groundmass of comminuted pyroxene and plagioclase (up to 0.5 mm) with fine- to coarse-grained basaltic clasts ranging up to 5 mm. Basaltic material occurs as the host rock and clasts within this meteorite. Most of the pyroxene has compositions ranging from Fs23-59Wo2-23 with plagioclase An86-90Or0-1. The meteorite is a howardite. |
MIL 090153 has a high POEM (percentage of eucrite material) value > 88, within the range of eucrites.
Welten, K. et al. (2024) Terrestrial Ages and pairing of HEDs from the Miller Range Icefields, Antarctica. LPSC abstract. 55th Lunar and Planetary Science Conference, #1295. |