Sample Petrographic Description
Sample Number | DOM 18405 |
Newsletter | 44,2 |
Location | Dominion Range |
Field Number | 25115 |
Dimensions (cm) | 1.5 x 1.9 x 1.4 |
Weight (g) | 7.53 |
Original Classification | H3.8 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 17-33;Ferrosilite (mol%): 8-18 | |
Weathering | |
B | |
Fracturing | |
A | |
Macroscopic Description - Curtis Calva | |
The fusion crust is dark brown and smooth with iridescent weathering spots. The exposed interior is very smooth and rusted. The interior is very rusted and gray with white inclusions up to 1 mm. | |
Thin Section Description (,,2) - Cari Corrigan, Tim McCoy | |
The section exhibits numerous small, well-defined chondrules (up to 1.5 mm) in a black matrix of fine-grained silicates, metal and troilite. Weak shock effects are present. Polysynthetically twinned pyroxene is present. The meteorite is moderately to extensively weathered. Silicates are unequilibrated; olivines range from Fa17-33, and pyroxenes from Fs8-18. The meteorite is an H3 chondrite (estimated subtype 3.8). |
Antarctic Meteorite Images for Sample DOM 18405 | ||||
Lab Photo(s) : | ||||