Sulfur crystals on fluorescent aragonite Cozzo Disi Mine, Casteltermini, Agrigento, Sicily, Italy A striking specimen featuring vivid yellow sulfur crystals perched on a matrix of aragonite from the classic Cozzo Disi sulfur mine. The sulfur forms well-defined, lustrous crystals with rich color saturation and attractive clustering. The underlying aragonite is microcrystalline and fluoresces under UV light, adding an additional visual dimension to the piece. An iconic Sicilian locality specimen, combining strong contrast, aesthetic balance, and both mineralogical and fluorescent interest.