Newsletter |
21,2 |
Location |
Elephant Moraine |
Field Number |
10647 |
Dimensions (cm) |
3.0 x 2.5 x 1.5 |
Weight (g) |
17.10 |
Original Classification |
Ureilite |
Pairing |
EET 87511;
EET 87523;
EET 87717;
EET 96262;
EET 96322;
EET 96328;
|
Fayalite (mol%): 11-15;Ferrosilite (mol%): 13 |
B/C |
B |
The exterior has very small patches of rough vesicular black fusion crust. The interior is medium gray matrix containing dark gray to black inclusions with some minor rust and a sugary texture. |
The sections consist of an aggregate of olivine (up to 1.5 mm) and orthopyroxene (up to 2.5 mm) grains. Carbonaceous material and traces of Fe, Ni metal bound the olivine grains. The meteorite is only very lightly weathered. Undulatory extinction is common. Olivine has cores of Fa15 with rims reduced to Fa12. Pyroxene is Fs13Wo3. The meteorites are ureilites. |
This sample is paired with EET 87511 in 2020 by K. Righter based on field locations, textural similarities, and olivine minor and major element compositions (Goodrich, 2001, LPSC abstract, #1300; Downes et al., 2008, Geochim. Cosmochim. Acta 72(19), 4825-4844). |