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39,2 |
Location |
Miller Range |
Field Number |
23043 |
Dimensions (cm) |
4.2 x 2.9 x 2.9 |
Weight (g) |
48.00 |
Original Classification |
Diogenite |
Fayalite (mol%): 31;Ferrosilite (mol%): 25 |
A/B |
B |
Black fusion crust covers ~15% of the exterior. Fractures penetrate the surface. The exposed interior appears green with dark shiny minerals. The interior is a greenish gray matrix with shiny greenish black inclusions. Minor orange rust is around some of the greenish minerals and white elongated crystals are present. |
The section shows a groundmass of coarse (up to 2 mm) comminuted pyroxene, with minor olivine. A finer grained clast with only rare large orthopyroxenes occurs. The clast is ~2 mm in maximum dimension. Orthopyroxene has a composition of Fs25Wo2 and olivines are Fa31. The Fe/Mn ratio of the pyroxene is ~29. The meteorite is a diogenite. |