D. Yu. Pushcharovskii, A. M. Dago, E. A. Pobedimskaya, N. V. Belov, “Crystal structure of erbium germanogermanate $\mathrm{Er}_4\mathrm{Ge}_3\mathrm{O}_9(\mathrm{OH},\mathrm{F})_6$. On the crystallochemical features of the $\mathrm{TR}_4[\mathrm{Ge}^{\mathrm{VI}}\mathrm{Ge}_2^{\mathrm{IV}}\mathrm{O}_9] (\mathrm{OH},\mathrm{F})_6$ (<nobr>$\mathrm{TR}=\mathrm{Er}-\mathrm{Lu}$</nobr>) structural type”, Dokl. Akad. Nauk SSSR, 1980, Volume 251, Number 2,Pages <nobr>354

CRYSTALLOGRAPHY

Crystal structure of erbium germanogermanate $\mathrm{Er}_4\mathrm{Ge}_3\mathrm{O}_9(\mathrm{OH},\mathrm{F})_6$. On the crystallochemical features of the $\mathrm{TR}_4[\mathrm{Ge}^{\mathrm{VI}}\mathrm{Ge}_2^{\mathrm{IV}}\mathrm{O}_9] (\mathrm{OH},\mathrm{F})_6$ ($\mathrm{TR}=\mathrm{Er}-\mathrm{Lu}$) structural type

D. Yu. Pushcharovskii, A. M. Dago, E. A. Pobedimskaya, N. V. Belov

Lomonosov Moscow State University

UDC: 548.736.6

Received: 07.12.1979