This combo specimen has a style and 3-dimensionality that make it unique! A druse of brassy yellow pyrite highlights splendent, black sphalerite crystals, to 1.5 cm across and superb rhombohedrons of frosted, lustrous and translucent, ivory colored calcite to 3.5 cm across. The way the calcites climb this specimen and surmount it is aesthetic and exceptional. Interestingly, the pyrites are, on close inspection, pseudomorphs after pyrrhotite and retain the bladed habit of the previous species. The calcite fluoresces a rich reddish-orange color due to manganese content, as a bonus. A wonderful example of sufides and carbonates!