Incredible cluster of stacked, pseudocubic native antimony crystals up to 1.7 cm in length from a classic European locality! Native antimony crystals are exceedingly rare and this Pribram piece is very impressive. The metallic, silver-white, crudely formed, scalenohedral crystals grade into and sit atop a coarse granular matrix of antimony with minor white calcite and displays exceptionally well. Ex. Frank Keutsch collection with label.