Journal of


  (Formerly Journal of the Czech Geological Society)

Original Paper

Jiří Sejkora, Jiří Čejka, Vladimír Šrein

Pb dominant members of crandallite group from Cínovec and Moldava deposits, Krušné hory Mts. (Czech Republic)

Journal of the Czech Geological Society, volume 46 (2001), issue 1-2, 53 - 68


Pb dominant members of crandallite group from Cínovec Sn-W deposit and Moldava fluorite deposit (Krušné hory Mts., Czech Republic) were studied by X-ray powder diffraction, chemical analyses and infrared spectroscopy. The minority content of indium (up to 2.44 wt. % In2O3) in the B position of general formula observed in beudantite sample from Cínovec is the first known assertion of this chemical element in minerals of the crandallite group. The pronounced dependence of the lattice parameters on the Al/Fe ration in B position and As/P in X position of general formula for Pb-dominant members of crandallite group was established. Extensive isomorphism in all three positions in general formula of the crandallite group minerals was confirmed.

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ISSN: 1802-6222

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