Citation: Ackermann, S.; Kunz, M.; Armbruster, T.; Schefer, J.; Hanni, H. (2004). Cation distribution in a Fe-bearing K-feldspar from Itrongay, Madagascar: A combined neutron- and X-ray single-crystal diffraction study Note: X-Ray diffraction data, occupancies taken from simultaneous data. Schweizerische Mineralogische und Petrographische Mitteilungen, 84, pp. 345-354.