Turquoise

Turquoise is an opaque blue-green mineral composed of hydrated copper and aluminum phosphate. It forms in arid regions, often in rocky veins, with major historical sources including Persia, Mexico, and the southwestern United States. Used for millennia as an ornamental stone and amulet, it was considered sacred by various cultures, such as the ancient Egyptians, Navajo, and Persians, who associated it with protection and spiritual connection.