Dúbravka, Bratislava IV, Bratislava, Bratislava Region, Slovakia

Backscattered electron image of native bismuth aggregate (white) replaced by bismite (light grey)and bismutite (dark grey) in quartz (black). Native bismuth was confirmed by EMPA-WDS and it represents the first occurrence of this species in pegmatites in Slovakia. Scale bar is on the image. Photographed by Daniel Ozdín and Martin Števko. Ref.: ...

© Martin Števko

Light green beryl crystal from Dúbravka pegmatite.

© Juraj Demian

Outcrop of granitic pegmatite vein at Švábsky Hill. Photographed by Martin Števko in April 2011.

© Martin Števko

Freshly uncovered part of the Švábsky vrch granitic pegmatite vein. Field of view is around 2 meters. Photographed by Martin Števko in January of 2021.

© Martin Števko