Physical properties and crystal structure of near end-member oxy-dravite from the Beluga occurence, Nunavut territory, Canada

Warning

This publication doesn't include Faculty of Arts. It includes Faculty of Science. Official publication website can be found on muni.cz.
Authors

SKŘÁPKOVÁ Lenka CEMPÍREK Jan

Year of publication 2023
Type Conference abstract
MU Faculty or unit

Faculty of Science

Citation
Description A new occurrence of oxy-dravite was found in a composition near its ideal end-member at the Beluga occurrence, Nunavut territory, Canada. Oxy-dravite belongs to the sodic group of the tourmaline supergroup with dominant WO, and commonly forms a solid solution with foitite, schorl, and oxy-schorl. Since its original description (Bosi & Skogby 2013) from the quartz-muscovite schist from Osarara (Narok district, Kenya), the mineral has been found at several localities worldwide, typically in metamorphic environments, and typically in solid solution with other species (Čopjaková et al. 2012; Cempírek et al. 2013; Pieczka et al. 2018). The contribution provides new information about the occurrence, chemical composition, physical and structural properties of the oxy-dravite with a near-endmember composition from the Beluga occurrence. These data improve characterization of physical properties of oxy-dravite, allow examination of oxy-dravite solid solutions with respect to other species, improve the interpretation of Al–Mg disorder among the Y- and Z-sites, and discuss its petrogenetic importance.
Related projects:

You are running an old browser version. We recommend updating your browser to its latest version.