L6 Chondrite
The Sixiangkou Meteorite fell on June 15, 1989 near Sixiangkou town.
Microscopic examination shows that it is an olivine-bronzite chondritic meteorite composed primarily of olivine (40%), bronzite (32%), plagioclase (10%), kamacite (7%), troilite (6%) and some Ca-rich salite and cristobalite.
References:
- Liu, L. (1978): High-pressure phase transformations of albite, jadeite and nepheline. Earth Planetary Science Letters, 37, 438-444.
- Gillet, P., Chen, M., Dubrovinsky, L., El Goresy, A. (2000): Natural NaAlSi3O8-hollandite in the shocked Sixiangkou meteorite. Science, 287, 1633-1636.
- Tomioka, N., Mori, H., Fujino, K. (2000): Shock-induced transition of NaAlSi3O8 feldspar into a hollandite structure in a L6 chondrite. Geophysical Research Letters, 27, 3997-4000.
- Zhang, A., Hsu, W., Wang, R., Ding, M. (2006): Assemblage of diopside, pyroxene, akimotoite, and ringwoodite in the heavily shocked Sixiangkou L6 chondrite: further constraints on conditions of shock metamorphism. Lunar and Planetary Science, 37, 1069.
- Miyajima, N., El Goresy, A., Dupas-Bruzek, C., Seifert, F., Rubie, D.C., Chen, M., Xie, X. (2007): Ferric iron in Al-bearing akimotoite coexisting with iron-nickel metal in a shock-melt vein in an L-6 chondrite. American Mineralogist, 92, 1545-1549.
