Sample Petrographic Description
Sample Number | MIL 15322 |
Newsletter | 42,1 |
Location | Miller Range |
Field Number | 23058 |
Dimensions (cm) | 3.9 x 3.0 x 2.0 |
Weight (g) | 29.27 |
Original Classification | EH3 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0-1;Ferrosilite (mol%): 0-2 | |
Weathering | |
B/C | |
Fracturing | |
A/B | |
Macroscopic Description - Cecilia Satterwhite | |
70% black fusion crust covers the exterior, some surfaces are fractured and frothy. The rest of the exterior is rusty brown. The interior is a dark gray to black matrix with metal, some oxidation which is heavy in areas. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The section shows an aggregate of chondrules (up to 1 mm), chondrule fragments, and pyroxene grains in a matrix of about 30% metal and sulfide. Chondrules contain moderate to small abundances of olivine. Weathering is modest, with staining of some enstatite grains and minor alteration of metal and sulfides. Microprobe analyses show the olivine is Fa0-1 and pyroxene is Fs0-2. The meteorite is a type 3 enstatite chondrite, probably an EH3. |
Antarctic Meteorite Images for Sample MIL 15322 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 15322 | ||||
Thin Section Photo(s) : | ||||