A beautiful and excellent combination specimen from Romania of lustrous, twinned, black sphalerite crystals to 1.2 cm with lustrous chalcopyrite and pyrite crystals on a bed of transparent, needle quartz crystals. Ex. Ed Ruggiero Collection, who purchased this piece in May, 1987. This is one of the last pieces that Ed ever purchased, as he quit collecting in 1987. A bit of periphery damage is certainly not detracting. None of the major sulfide crystals are damaged. 9.7 x 8.8 x 3.0 cm