Newsletter |
40,2 |
Location |
Elephant Moraine |
Field Number |
24645 |
Dimensions (cm) |
6.0 x 3.0 x 1.6 |
Weight (g) |
61.66 |
Original Classification |
Diogenite |
Ferrosilite (mol%): 25-29 |
A |
B |
35% of the exterior is covered by a jet black, speckled fusion crust. There are small fractures that penetrate the rock. The exposed surface is gray with green crystals (up to 3 mm in size) protruding out of the sample. The interior has a light gray matrix with green crystals and some dark gray inclusions. There are minor amounts of orange/brown rust surrounding the crystals and within the matrix toward the exterior of the rock. |
The section shows a groundmass of coarse (up to 1.5 mm) comminuted pyroxene, with minor plagioclase and SiO2. Orthopyroxene has a composition of Fs25-29Wo3. The Fe/Mn ratio of the pyroxene is ~30. The meteorite is a diogenite. Possible pairing with EET 87530 should be considered. |