| Pairing |
|
| Newsletter |
32,2 |
| Location |
Larkman Nunatak |
| Field Number |
19354 |
| Dimensions |
2.5 x 1.75 x 1.0 |
| Weight |
6.25 |
| Original Classification |
CK6 Chondrite |
| Macroscopic Description - Kathleen McBride |
| The exterior is a weathered dull black with chocolate brown patches of fusion crust. The interior is a gray matrix with rust and evaporites. It has a soft texture with low or no metal. |
| Thin Section
(,4) Description - Cari Corrigan, Tim McCoy and Linda Welzenbach |
| The section consists of a coarse-grained mixture of olivine, pyroxene, plagioclase, magnetite and sulfides. Rare relict chondrules are observed and the section is cross-cut by veins and networks of shock-melt that includes micron-sized silicates, magnetite and sulfides. Mafic silicates are homogeneous. Olivine is Fa34 and augite is Fs10Wo48. Plagioclase is variable (An62-89). The meteorite is a shock-veined CK6 chondrite. |
| Oxygen Isotopic Analysis - Doug Rumble |
| The oxygen isotopic composition of a magnetic, whole-rock fraction is δ17O = -5.684, -5.789, δ18O = -2.171, -2.348, Δ17O = -4.54, -4.55, within the range of CK chondrites. |
