Newsletter |
32,1 |
Location |
Miller Range |
Field Number |
18330 |
Dimensions (cm) |
2.25 x 1.5 x 3.25 |
Weight (g) |
26.72 |
Original Classification |
Howardite |
Fayalite (mol%): 37-38;Ferrosilite (mol%): 27-43 |
A |
A |
60% of the surface has brown/black fusion crust with polygonal fractures. The interior is black, gray and white fined grained matrix with green, white, and gray inclusions. |
The section shows a groundmass of comminuted pyroxene and plagioclase (up to 0.5 mm) with fine- to coarse-grained basaltic clasts exceeding 2 mm. Pyroxene includes diogenite-like compositions of Fs27-29Wo2-3 and pigeonite of Fs43Wo9. Plagioclase is An80-85 and olivine is Fa37-38. A distinctive feature of this meteorite is patches of troilite that appear to have been melted, forming a web structure that encloses silicates. The meteorite is a howardite. |