“Irregular aggregate of acicular to prismatic crystals of Sb-rich grumiplucite with minor dark red cinnabar. Field of view is 2.5 mm. Both minerals were confirmed by EMPA-WDS. Collected in 1993 on 19th level of Droždiak vein, ore block 9203. Photographed by Pavel Škácha. Martin Števko collection. Ref.: Števko M., Sejkora J., Peterec D. (2015): Grumiplucite from the Rudňany deposit, Slovakia: a second world-occurrence and new data. Journal of Geosciences, 60, 4, 269-281. ”