Sample Petrographic Description
Sample Number | MIL 13019 |
Newsletter | 38,2 |
Location | Miller Range |
Field Number | 22666 |
Dimensions (cm) | 4.3 x 3.0 x 4.0 |
Weight (g) | 67.51 |
Original Classification | Eucrite (Unbrecciated) |
Mineral Composition (%Fa & %Fs) | |
Ferrosilite (mol%): 25-60 | |
Weathering | |
A/B | |
Fracturing | |
A/B | |
Macroscopic Description - Mitchell Haller | |
50% of the exterior has glossy jet black fusion crust with gray weathered areas and minor fractures. The interior is a white/gray matrix with fracture lines throughout. Some inclusions/clasts are visible. | |
Thin Section Description (,2) - Cari Corrigan, Tim McCoy | |
The meteorite is unbrecciated, but with extensive shock veining cross cutting the sample. Shock veins form a network with widths of 1 mm. Shock effects are extensive throughout the sample. Mineral compositions are homogeneous with orthopyroxene (Fs60Wo2), with lamellae of augite (Fs25Wo44), and plagioclase (An87Or0.5). The Fe/Mn ratio of the pyroxene is ~28. The meteorite is a eucrite. |
Antarctic Meteorite Images for Sample MIL 13019 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample MIL 13019 | ||||
Thin Section Photo(s) : | ||||