Newsletter |
30,2 |
Location |
Larkman Nunatak |
Field Number |
15485 |
Dimensions (cm) |
2.5 x 1.5 x 1.0 |
Weight (g) |
5.82 |
Original Classification |
CV3 Chondrite |
Updated Classification |
CV 3.7 Chondrite Oxidized A |
Pairing |
LAR 04364;
LAR 12100;
|
Fayalite (mol%): 1-36 |
Ce |
B |
40% black fusion crust with polygonal fractures covers the exterior. The interior is a weathered black matrix with evaporites and gray chondrules. |
The section exhibits large chondrules (up to 3 mm) and CAIs in a dark matrix. Olivines range from Fa1-36, with most Fa1-5. The meteorite is an unequilibrated carbonaceous chondrite, probably a CV3. |
Reclassification and pairing based on Raman spectroscopy (petrologic type 3.7), and on Ni content of metal and sulfide and magnetic susceptibility (Oxidized A). Details are reported in Righter et al. (2022); doi: 10.1111/maps.13932. |