“5.6 x 4.2 x 2.1 cm. Sulvanite is a very rare copper vanadium sulfide which rarely forms nice large crystals. Here, we have sharp crystals to 6mm on nicely contrasting matrix of quartz. Ex. Philadelphia Academy of Sciences Collection. ”

“5.6 x 4.2 x 2.1 cm. Sulvanite is a very rare copper vanadium sulfide which rarely forms nice large crystals. Here, we have sharp crystals to 6mm on nicely contrasting matrix of quartz. Ex. Philadelphia Academy of Sciences Collection. ”