Calcedonio

Calcedonio is a rare male given name derived from the Greek word 'chalkedon' (χαλκηδών), which refers to the mineral chalcedony. The name's association with the gemstone likely stems from its beauty and perceived value. Chalcedony itself is believed to have been named after the ancient city of Chalcedon (modern-day Kadıköy in Turkey), a Greek city in Bithynia, Asia Minor, located on the Bosphorus.

The name has historically been used in Italian-speaking regions, particularly in Sicily, where it might have been influenced by local traditions or veneration of saints associated with gemstones or the East. Its usage remains very limited, contributing to its rarity.