Newsletter |
35,1 |
Location |
Miller Range |
Field Number |
20185 |
Dimensions (cm) |
2.0 x 1.25 x 0.5 |
Weight (g) |
2.04 |
Original Classification |
CM1/2 Chondrite |
Pairing |
MIL 090288;
MIL 090986;
MIL 090992;
MIL 090993;
MIL 11111;
|
Fayalite (mol%): 1-56;Ferrosilite (mol%): 1-9 |
A |
B |
The exterior of these meteorites range from no fusion crust to 50% dull purplish black fusion crust with polygonal fractures. The interior matrices are black with powdery textures and have oxidation rinds. Small light gray chondrules and clasts are visible. |
The sections consist of a few small chondrules (up to 0.5 mm), mineral grains and CAIs set in a black matrix; rare metal and sulfide grains are present. Olivine compositions are Fa0-56, orthopyroxene is Fs1-9Wo1-4. Aqueous alteration of the matrix is substantial, but the chondrules are only modestly altered. These meteorites are CM1/2 chondrites. |