Sejkoraite-(Y), a new member of the zippeite group containing trivalent cations from Jachymov (St. Joachimsthal), Czech Republic: Description and crystal structure refinement
2011
Abstrakt
Sejkoraite-(Y) is a new member of the zippeite group from the Červená vein, Jáchymov (Street Joachimsthal) ore district, Western Bohemia, Czech Republic. It grows on altered surface of relics of primary minerals: ura-ninite, chalcopyrite, and tennantite.
The crystal structure of sejkoraite-(Y) has been solved by the charge flipping method from single-crystal X-ray diffraction data and refined to Robs = 0.060 with GOFobs = 2.38, based on 6511 observed reflections. Raman and infrared spectra of sejkoraite-(Y) are discussed.