This Specimen has been sold.
3" Sulfur Crystals on Fluorescent Aragonite - Italy
This is a 3" wide aragonite and sulfur crystal association, collected from the Cozzodisi Mine in Sicilia, Italy. Gorgeous sulfur crystals can be found scattered throughout this aragonite encrusted matrix. Under UV lighting, these aragonite crystals fluoresce orange. There are two relatively flat edges on this specimen, allowing for aesthetic presentation without the need for a display stand.
The chemical composition of this vibrant mineral is S8, meaning 8 sulfur atoms bonded together to form a sulfur molecule. The crystal structure is typically tabular or as blocky dipyramids that form in sedimentary rock.
Aragonite is a carbonate mineral with the chemical composition of CaCO3. It is a pseudomorph after calcite and varies in colors depending on impurities. It displays a translucent to white color when pure, and when impure can vary between yellow, green, pink, blue and brown. Typically forming in low temperature hydrothermal veins, It is also known to form in hot springs, as precipitates from chemicals in sedimentary rock, and in some cases as crystals in fossilized sea creatures.