Sejkoraite-(Y), a new member of the zippeite group containing trivalent cations from Jachymov (St. Joachimsthal), Czech Republic: Description and crystal structure refinement

2011/06/24 by Jakub Plášil, J. Plasil, Michal Dušek +8 · 2 citations
Chemistry · Earth and Planetary Sciences · Materials Science · #Radioactive element chemistry and processing #Geochemistry and Elemental Analysis #Crystal Structures and Properties

paper · doi:10.2138/am.2011.3713

Abstract

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.

Citations

• Contribution to the mineralogy of acid drainage of Uranium minerals: Marecottite and the zippeite-group

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