Elena Mine, Nandraž, Revúca District, Banská Bystrica Region, Slovakia
A dendritic growth of deformed copper crystals on quartz matrix. Field of view 30 mm. Photo and collection Martin Števko.
Well developed copper crystal with brown patina. Field of view 3 mm. Photo and collection Martin Števko.
Black tenorite in rock cavity. Size 10×5 cm. Collection of Geologický pavilon of VŠB - Technical University of Ostrava (http://geologie.vsb.cz/gp ).
© Jakub Jirásek, 2013
FOV: 3 x 2 cm Collector: Tomas Bancik Collection: Jakub Cajko Photo: Jakub Cajko
© Jakub Čajko
Nice copper from Elena mine dumps, size of specimen 3cm X 3,5cm. Photo and in collection Anton Kukučka.
Copper partially covered with secondary Cu minerals connecting small quarz pieces from Nandraz.
© Juraj Demian
The main collecting place on the Elena mine dump. Here I found the best Slovak specimens of native copper. July 2007. Photographed by Martin Števko.
Collapsed entrance of Elena adit near Nandraž. This mine exploited several hydrothermal quartz-siderite veins with abundant chalcopyrite and pyrite. The zone of supergene enrichment was source of the best specimens of native copper in Slovakia, collected especially around 1910 and then again in 1940-1950s. Photographed by Martin Števko in May of ...
© Martin Števko