Description: Parallel growth of two prismatic crystals, one of them dominant and partially doubly terminated. Second Sovietsky mine, Dal'negorsk, Primorskiy Kray, Russia 6.8 × 4 × 3.1 cm = 2.7” × 1.6” × 1.2” (Photo: Jordi Fabre)

All pictures, text, design © Forum FMF 2006-2025