Newsletter |
21,1 |
Location |
Elephant Moraine |
Field Number |
9406 |
Dimensions (cm) |
2.5 x 1.5 x 0.5 |
Weight (g) |
5.89 |
Original Classification |
C2 Chondrite |
Updated Classification |
CM2 Chondrite |
Be |
B |
Thin purplish fusion crust covers 90% of the exterior surface. Polygonal fractures are present on the surface and the fusion crust has a very fine bubbly texture, almost iridescent in nature. The interior is dull black with a white evaporite ring between the fusion crust and matrix. A few visible chondrules are present. |
The section shows numerous chondrules, chondrule fragments, and small mineral grains in a black matrix; fusion crust is present along one edge. The chondrules and many of the mineral grains consist of an isotropic to weakly birefringent serpentine; a few of the mineral grains consist of calcite. The meteorite is a C2 chondrite, but differs in mineral composition and texture from the EET96005 C2 group. |
Many carbonaceous chondrites were initially classified as C2 in early newsletters. These are mostly CM2, based on matrix properties, chondrules abundance and sizes, and therefore all these samples have been reclassified more specifically here as CM2. |