Sample Petrographic Description
Sample Number | SZA 12430 |
Newsletter | 36,2 |
Location | Szabo Bluff |
Field Number | 24330 |
Dimensions (cm) | 12.0 x 3.0 x 7.0 |
Weight (g) | 412.12 |
Original Classification | CK4 Chondrite |
Mineral Composition (%Fa & %Fs) | |
Fayalite (mol%): 28-29;Ferrosilite (mol%): 17-28 | |
Weathering | |
Be | |
Fracturing | |
A/B | |
Macroscopic Description - Kathleen McBride | |
50% of the exterior surface has rough, dark brown to black fusion crust. The exposed interior is dark gray with visible chondrules. Evaporites and polygonal fractures are present. The interior matrix is medium gray color with vague gray chondrules and inclusions. | |
Thin Section Description (,2) - Cari Corrigan, Linda Welzenbach | |
The section consists of large (up to 2 mm), well-defined chondrules in a matrix of finer-grained silicates, sulfides and abundant magnetite. The meteorite is lightly weathered, but extensively shock blackened. Silicates are homogeneous. Olivine is Fa28-29 and orthopyroxene is Fs17-28Wo1-22. Feldspars are An25-51Wo1-4. The meteorite appears to be a CK4 chondrite. |
Antarctic Meteorite Images for Sample SZA 12430 | ||||
Lab Photo(s) : | ||||
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Antarctic Meteorite Images for Sample SZA 12430 | ||||
Thin Section Photo(s) : | ||||
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References for Sample SZA12430 | |
Beck, A.W., Peplowski, P.N., Yokley, Z.W., 2020, A miniaturized XRF instrument for in situ planetary exploration: The Active X-Ray Spectrometer (AXRS). Planetary and Space Science, 190, 104990. |