Newsletter |
26,2 |
Location |
MacAlpine Hills |
Field Number |
14036 |
Dimensions (cm) |
3.0 x 2.25 x 1.5 |
Weight (g) |
13.73 |
Original Classification |
L5 Chondrite |
Fayalite (mol%): 23;Ferrosilite (mol%): 20 |
B/C |
B/C |
Chocolate brown fusion crust covers ~75% of the exterior surface. The meteorite has a rough appearance. The interior is a dark gray, fine-grained crystalline matrix with a lot of rust and some fractures. It has a high metal content and a few gray clasts are visible. |
The section consists dominantly of a fine-grained (2-50 micron grain size) melt-textured matrix of olivine and pyroxene with elongated metal and sulfides and fragments of mineral grains and chondrules reaching 200 microns. Lenticular clasts of relict chondritic material also occur. These clasts are heavily shocked, but chondrule outlines can be discerned. The mineral compositions are homogenous; olivine is Fa23 and orthopyroxene is Fs20. The meteorite is an L5 impact-melt breccia. |