Sphalerite, Nikolaevskiy Mine, Russia Medium cabinet 6.5 x 6.5 x 15 cm $480. Online 3/6
Lustrous, black sphalerite with associated stacked rhombs of calcite and prismatic quartz. The sphalerite is highly resorbed and etched into a bizarre, fantastic form. No point of attachment and in top condition. From a unique pocket in 2011.