Sample Petrographic Description
Sample Number | DOM 18803 |
Newsletter | 47,1 |
Location | Dominion Range |
Field Number | 25019 |
Dimensions (cm) | 1.5 x 1.0 x 1.1 |
Weight (g) | 3.71 |
Original Classification | L3.5 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 0;Ferrosilite (mol%): 10-16 | |
Weathering | |
B | |
Fracturing | |
A | |
Macroscopic Description - Cecilia Satterwhite | |
60% of the exterior has black/brown fusion crust with rusty oxidation halos. Interior is a black matrix with abundant light/dark/weathered inclusions/chondrules. | |
Thin Section Description (,,2) - Cari Corrigan, Tim McCoy | |
The section is composed of chondrules that range up to 2 mm in size with a variety of textures set in a fine-grained dark matrix of silicates, metal and troilite. Polysynthetically twinned pyroxene is common. Weathering is moderate with staining and patches of iron oxides. Olivines range from Fa0-33 and pyroxenes from Fs10-16Wo0-1. The meteorite is a type 3 L chondrite, estimated subtype ~3.5. |
Antarctic Meteorite Images for Sample DOM 18803 | ||||
Lab Photo(s) : | ||||
Antarctic Meteorite Images for Sample DOM 18803 | ||||
Thin Section Photo(s) : | ||||