Newsletter |
41,2 |
Location |
Grosvenor Mountains |
Field Number |
25784 |
Dimensions (cm) |
5.5 x 5.0 x 3.3 |
Weight (g) |
133.86 |
Original Classification |
Eucrite (Polymict) |
Ferrosilite (mol%): 28-64 |
A/B |
A/B |
The exterior is 85% covered by black, glassy fusion crust. The exposed surface has a gray matrix with tan and white clasts (up to 2 mm in size). Some of the clasts have minor rust around them. The fresh interior is a light gray matrix with abundant beige clasts that are up to 5 mm in size. There are some white inclusions present. |
The meteorite is dominated by fine-grained (~200 micron average grain size) basaltic material which occurs as both the host and clasts within the meteorite. Clasts up to 0.5 mm exhibit acicular to equigranular textures. Mineral compositions are homogeneous with orthopyroxene (Fs64Wo2), with lamellae of augite (Fs28Wo43), and plagioclase (An64Or0.5). The Fe/Mn ratio of the pyroxene is ~32. The meteorite is a polymict eucrite. |