Multi-Wavelength Aragonite, Agrigento, Sicily, Italy

The sulfur mines of the Agrigento region of Sicily, Italy are notable for the production of well-formed clusters, plates and groupings of beautifully fluorescent and phosphorescent aragonite specimens, such as the one featured here. This specimen consists of a cluster of pseudohexagonal aragonite crystals that show a spectacular multi-wavelength response under UV. The size of this piece is 14 x 9 x 7 cm, and it weighs 743 grams.