Newsletter |
31,2 |
Location |
Larkman Nunatak |
Field Number |
19754 |
Dimensions (cm) |
2.5 x 2.0 x 1.5 |
Weight (g) |
15.27 |
Original Classification |
Ureilite |
Fayalite (mol%): 16-20;Ferrosilite (mol%): 1-15 |
B/Ce |
B/C |
40% of this achondrite’s exterior is covered with vesicular black fusion crust with polygonal fractures. The interior is a rusty matrix with clear and dark glassy inclusions. The meteorite is friable and has evaporites. |
The section consists of an aggregate of large olivine and pyroxene grains up to 2 mm across. Individual olivine grains are rimmed by carbon-rich material containing traces of metal. Olivine is Fa16-20 and pigeonite is Fs1-15 Wo3-9. The meteorite is a ureilite. |